Analog Devices ADAV4622 Bedienungsanleitung

Audio Processor for Advanced TV with

Sound IF Demodulator and Stereo Decoder

ADAV4622

Rev. B

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700 www.analog.com

FEATURES

Sound IF (SIF) processor

SIF demodulator and broadcast stereo decoder

NICAM (BG, DK, I, L), A2 (BG, DK, M), BTSC (M, N), EIAJ (M)

Automatic sound IF standard detection

Fully programmable 28-bit audio processor for enhanced

ATV sound—default TV audio flow loaded on reset

Implements Analog Devices and third-party branded audio

algorithms

Adjustable digital delay line for audio/video

Synchronization for up to 200 ms stereo delay

High performance 24-bit ADC and DAC

94 dB DNR performance on DAC channels

95 dB DNR performance on ADC channels

Dual headphone outputs with integrated amplifiers

High performance pulse-width modulation (PWM) digital

outputs

Multichannel digital baseband I/O

4 stereo synchronous digital I2S input channels

One 6-channel sample rate converter (SRC) and one

stereo SRC supporting input sample rates from

5 kHz to 50 kHz

One stereo synchronous digital I2S output

S/PDIF output with S/PDIF input mux capability

Fast I2C control

Operates from 3.3 V (analog), 1.8 V (digital core), and 3.3 V

(digital interface)

Available in 80-lead LQFP

APPLICATIONS

General-purpose consumer audio postprocessing

Home audio

DVD recorders

Home theater in a box (HTIB) systems and DVD receivers

Audio processing subsystems for DTV-ready TVs

Analog broadcast capability for iDTVs

PRODUCT OVERVIEW

The ADAV4622 is an enhanced audio processor targeting

advanced TV applications with full support for digital and

analog baseband audio as well as multistandard broadcast SIF

demodulation and decoding.

The audio processor, by default, loads a dedicated TV audio

flow that incorporates full matrix switching (any input to any

output), automatic volume control that compensates for volume

changes during advertisements or when switching channels,

dynamic bass, a multiband equalizer, and up to 200 ms of stereo

delay memory for audio-video synchronization.

Alternatively, Analog Devices, Inc., offers an award-winning

graphical programming tool (SigmaStudio™) that allows custom

flows to be quickly developed and evaluated. This allows the

creation of customer-specific audio flows, including use of the

Analog Devices library of third-party algorithms.

The analog I/O integrates Analog Devices proprietary

continuous-time, multibit Σ-Δ architecture to bring a higher

level of performance to ATV systems, required by third-party

algorithm providers to meet system branding certification. The

analog input is provided by 95 dB dynamic range (DNR) ADCs,

and analog output is provided by 94 dB DNR DACs.

The main speaker outputs can be supplied as a digitally

modulated PWM stream to support digital amplifiers.

The ADAV4622 includes multichannel digital inputs and

outputs. In addition, digital input channels can be routed

through integrated sample rate converters (SRC), which are

capable of supporting any arbitrary sample rate from 5 kHz

to 50 kHz.

ADAV4622

Rev. B | Page 2 of 28

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

Product Overview............................................................................. 1

Revision History ............................................................................... 2

Functional Block Diagram .............................................................. 3

Specifications..................................................................................... 4

Performance Parameters ............................................................. 4

Timing Specifications .................................................................. 9

Timing Diagrams........................................................................ 10

Absolute Maximum Ratings.......................................................... 12

Thermal Resistance .................................................................... 12

Thermal Conditions................................................................... 12

ESD Caution................................................................................ 12

Pin Configuration and Function Descriptions........................... 13

Typical Performance Characteristics ........................................... 16

Terminology .................................................................................... 18

Pin Functions .................................................................................. 19

SDIN0, SDIN1, SDIN2, and SDIN3/SPDIF_IN0................... 19

LRCLK0, BCLK0, LRCLK1, BCLK1, LRCLK2, and BCLK2 19

SDO0/AD0 .................................................................................. 19

SPDIF_OUT (SDO1) ................................................................. 19

MCLKI/XIN................................................................................ 19

XOUT........................................................................................... 19

MCLK_OUT ............................................................................... 19

SDA............................................................................................... 19

SCL ............................................................................................... 20

MUTE .......................................................................................... 20

RESET .......................................................................................... 20

AUXIN1L, AUXIN2L, AUXIN1R, and AUXIN2R................ 20

AUXOUT1L, AUXOUT2L, AUXOUT3L, AUXOUT4L,

AUXOUT1R, AUXOUT2R, AUXOUT3R, and AUXOUT4R

....................................................................................................... 20

HPOUT1L, HPOUT2L, HPOUT1R, and HPOUT2R .......... 20

PLL_LF......................................................................................... 20

VREF............................................................................................ 20

FILTA and FILTD....................................................................... 20

PWM1A, PWM1B, PWM2A, PWM2B, PWM3A, PWM3B,

PWM4A, and PWM4B.............................................................. 20

PWM_READY ........................................................................... 20

AVDD .......................................................................................... 20

DVDD.......................................................................................... 20

ODVDD....................................................................................... 20

DGND.......................................................................................... 20

AGND.......................................................................................... 20

ODGND ...................................................................................... 20

SIF_REFP, SIF_REFCM, and SIF_REFN ................................ 20

SIF_IN1 and SIF_IN2 ................................................................ 20

SIF_PGA_REF ............................................................................ 20

ISET.............................................................................................. 20

Functional Descriptions ................................................................ 21

SIF Processor............................................................................... 21

Master Clock Oscillator............................................................. 21

I2C Interface ................................................................................ 22

ADC Inputs................................................................................. 22

I2S Digital Audio Inputs ............................................................ 22

DAC Voltage Outputs ................................................................ 23

PWM Outputs ............................................................................ 24

Headphone Outputs................................................................... 24

I2S Digital Audio Outputs ......................................................... 24

S/PDIF Input/Output................................................................. 25

Hardware Mute Control ............................................................ 25

Audio Processor ......................................................................... 25

Graphical Programming Environment ................................... 25

Application Layer ....................................................................... 25

Loading a Custom Audio Processing Flow............................. 26

Outline Dimensions....................................................................... 28

Ordering Guide .......................................................................... 28

REVISION HISTORY

7/09—Rev. A to Rev. B

Added Advantiv Logo ...................................................................... 1

Change to PWM Outputs Section................................................ 24

Change to Hardware Mute Control, Graphical Programming

Environment, and Application Layer Sections........................... 25

Changes to Ordering Guide .......................................................... 28

11/08—Revision A: Initial Version

ADAV4622

Rev. B | Page 3 of 28

FUNCTIONAL BLOCK DIAGRAM

AUDIO

PROCESSOR

ADAV4622

A-V

SYNCHRONOUS

DELAY

MEMORY

C INTERFACE

SIF PROCESSOR

AD0

SYNCHRONOUS

MULTICHANNEL

DIGITAL INPUTS

6-CHANNEL SRC

ASYNCHRONOUS

DIGITAL INPUT

2-CHANNEL SRC

ASYNCHRONOUS

DIGITAL INPUT

SYSTEM

CLOCKS

PLL

SPDIF_IN0

SPDIF_IN1

SPDIF_IN2

SPDIF_IN3

SPDIF_IN4

SPDIF_IN5

SPDIF_IN6

SPDIF_OUT/SDO1

S/PDIF I/O

PWM

DIGITAL

OUTPUT

PWM1A

PWM1B

PWM2A

PWM2B

PWM3A

PWM3B

PWM4A

PWM4B

PWM_READY

BCLK1

LRCLK1

SDO0/AD0

HPOUT2L

HPOUT2R

AUXOUT2L

AUXOUT2R

DAC

HPOUT1L

AUXOUT4R

AUXOUT4L

HPOUT1R

DAC

AUXOUT1L

AUXOUT1R

DAC

AUXOUT3L

AUXOUT3R

DAC

SCL

SDA

BCLK2

LRCLK2

BCLK0

LRCLK0

SDIN0

SDIN1

SDIN2

SDIN3

XOUT

MCLKI/XIN

MCLK_OUT

SIF_IN1

SIF_IN2

AUXIN2L

AUXIN2R

ADC

AUXIN1L

AUXIN1R

ADC

DIGITAL

OUTPUTS

BCLK1

LRCLK1

MUTE

07068-001

Figure 1. ADAV4622 with PWM-Based Speaker Outputs

ADAV4622

Rev. B | Page 4 of 28

SPECIFICATIONS

AVDD = 3.3 V, DVDD = 1.8 V, ODVDD = 3.3 V, operating temperature = −40°C to +85°C, master clock = 24.576 MHz, measurement

bandwidth = 20 Hz to 20 kHz, ADC input signal = DAC output signal = 1 kHz, unless otherwise noted.

PERFORMANCE PARAMETERS

Table 1.

Parameter Min Typ Max Unit Test Conditions/Comments

SIF ADC INPUT SECTION

Analog Input Frequency Range 10 MHz

Recommended Analog Input Level 90 ± 18 dB dBu FM, AGC in PGA priority mode

Maximum Analog Input Range 1.6 V p-p Default setting

Input Impedance 12 kΩ PGA Gain = 0 dB

6 KΩ PGA Gain = 10 dB

2.3 kΩ PGA Gain = 20 dB

DC Bias Level 1.9 V

SIF Input Isolation 60 dB SIF_IN1 to SIF_ IN2

FM Limiting Sensitivity 32 dBu A2 (DK), Mono, deviation mode = 100%, fFM = 400 Hz,

Δf = 50 kHz, BW = 20 Hz to 15 kHz, rms detector

31 dBu A2 (I), Mono, deviation mode = 100%, fFM = 400 Hz,

Δf = 50 kHz, BW = 20 Hz to 15 kHz, rms detector

31 dBu A2 (BG), Mono, deviation mode = 100%, fFM = 400 Hz,

Δf = 50 kHz, BW = 20 Hz to 15 kHz, rms detector

34 dBu BTSC (M, N), Mono, deviation mode = 100%,

fFM = 400 Hz, Δf = 25 kHz, BW = 20 Hz to 15 kHz,

rms detector

28.5 dBu A2 (M), Mono, deviation mode = 100%, fFM = 400 Hz,

Δf = 25 kHz, BW = 20 Hz to 15 kHz, rms detector

30 dBu EIAJ (M), Mono, deviation mode = 100%, fFM = 400 Hz,

Δf = 25 kHz, BW = 20 Hz to 15 kHz, rms detector

FM Output Level at 25% Deviation Mode 53.7 % FS A2 (DK, I, BG), Mono, VSIF = 100 mV, fFM = 400 Hz,

Δf = 12.5 kHz, rms detector

53.6 % FS BTSC (M, N), Mono, VSIF = 100 mV, fFM = 400 Hz,

Δf = 6.25 kHz, rms detector

56.3 % FS A2 (M), Mono, VSIF = 100 mV, fFM = 400 Hz,

Δf = 6.25 kHz, rms detector

56.7 % FS EIAJ (M), Mono, VSIF = 100 mV, fFM = 400 Hz,

Δf = 6.25 kHz, rms detector

FM Output Level at 50% Deviation Mode 53.7 % FS A2 (DK, I, BG), Mono, VSIF = 100 mV, fFM = 400 Hz,

Δf = 25 kHz, rms detector

53.6 % FS BTSC (M, N), Mono, VSIF = 100 mV, fFM = 400 Hz,

Δf = 12.5 kHz, rms detector

56.3 % FS A2 (M), Mono, VSIF = 100 mV, fFM = 400 Hz,

Δf = 12.5 kHz, rms detector

56.7 % FS EIAJ (M), Mono, VSIF = 100 mV, fFM = 400 Hz,

Δf = 12.5 kHz, rms detector

FM Output Level at 100% Deviation Mode 53.7 % FS A2 (DK, I, BG), Mono, VSIF = 100 mV, fFM = 400 Hz,

Δf = 50 kHz, rms detector

53.6 % FS BTSC (M, N), Mono, VSIF = 100 mV, fFM = 400 Hz,

Δf = 25 kHz, rms detector

56.3 % FS A2 (M), Mono, VSIF = 100 mV, fFM = 400 Hz, Δf = 25 kHz,

rms detector

56.7 % FS EIAJ (M), Mono, VSIF = 100 mV, fFM = 400 Hz, Δf = 25 kHz,

rms detector

FM Output Level at 200% Deviation Mode 53.7 % FS A2 (DK, I, BG), Mono, VSIF =100 mV, fFM = 400 Hz,

Δf = 100 kHz, rms detector

53.6 % FS BTSC (M, N), Mono, VSIF = 100 mV, fFM = 400 Hz,

Δf = 50 kHz, rms detector

56.3 % FS A2 (M), Mono, VSIF = 100 mV, fFM = 400 Hz, Δf = 50 kHz,

rms detector

56.7 % FS EIAJ (M), Mono, VSIF = 100 mV, fFM = 400 Hz, Δf = 50 kHz,

rms detector

ADAV4622

Rev. B | Page 5 of 28

Parameter Min Typ Max Unit Test Conditions/Comments

FM Output Level at 400% Deviation Mode 53.7 % FS A2 (DK, I, BG), Mono, VSIF = 100 mV, fFM = 400 Hz,

Δf = 200 kHz, rms detector

53.6 % FS BTSC (M, N), Mono, VSIF = 100 mV, fFM = 400 Hz,

Δf = 100 kHz, rms detector

56.4 % FS A2 (M), Mono, VSIF = 100 mV, fFM = 400 Hz,

Δf = 100 kHz, rms detector

56.7 % FS EIAJ (M), Mono, VSIF = 100 mV, fFM = 400 Hz, Δf = 100 kHz,

rms detector

FM Output Level at 800% Deviation Mode 53.7 % FS A2 (DK, I, BG), Mono, VSIF = 100 mV, fFM = 400 Hz,

Δf = 400 kHz, rms detector

53.6 % FS BTSC (M, N), Mono, VSIF = 100 mV, fFM = 400 Hz,

Δf = 200 kHz, rms detector

56.3 % FS A2 (M), Mono, VSIF = 100 mV, fFM = 400 Hz,

Δf = 200 kHz, rms detector

56.7 % FS EIAJ (M), Mono, VSIF = 100 mV, fFM = 400 Hz,

Δf = 200 kHz, rms detector

AM Rejection Ratio 69.5 dB A2 (DK), Mono, deviation mode = 100%, VSIF = 100 mV,

fFM = 400 Hz, Δf = 27 kHz, fAM = 400 Hz, MODAM = 30%,

BW = 20 Hz to 15 kHz, rms detector

70 dB A2 (I), Mono, deviation mode = 100%, VSIF = 100 mV,

fFM = 400 Hz, Δf = 27 kHz, fAM = 400 Hz, MODAM = 30%,

BW = 20 Hz to 15 kHz, rms detector

70 dB A2 (BG), Mono, deviation mode = 100%, VSIF = 100 mV,

fFM = 400 Hz, Δf = 27 kHz, fAM = 400 Hz, MODAM = 30%,

BW = 20 Hz to 15 kHz, rms detector

70.5 dB Mono (M), deviation mode = 100%, VSIF = 100 mV,

fFM = 400 Hz, Δf = 13.5 kHz, fAM = 400 Hz, MODAM = 30%,

BW = 20 Hz to 15 kHz, rms detector

AM Sensitivity 40 dBu Mono (L), fAM = 400 Hz, MOD = 30%, BW = 20 Hz to 15 kHz,

rms detector, (S + N)/N = 10 dB

BTSC (M) PERFORMANCE Measured at analog audio output, video = 75% color bar,

fSC = 4.5 MHz, fFM = 1 kHz, Δf = 25 kHz (100%), deemphasis =

75 μs, measuring BW = 20 Hz to 15 kHz with dBX NR

Dynamic Range

Stereo Channel 62 dB Stereo L or R (L = −R), 100%, 1 kHz

SAP Channel 68 dB SAP channel with Mono 100%, 1 kHz

Total Harmonic Distortion + Noise

Stereo Channel −46 dB Stereo L or R (L = −R), 100%, 1 kHz

SAP Channel −40 dB SAP 100%, 1 kHz

Frequency Response fFM = 20 Hz to 12 kHz

Stereo Channel +0.1/−0.7 dB Stereo L or R, 50%, (L = −R)

SAP Channel +2.5/−2.5 dB SAP 50%, Mono 100%, 1 kHz

Crosstalk

Stereo-to-SAP Channel −74 dB L or R 50%, 1 kHz

SAP-to-Stereo Channel −71 dB SAP 50%, 1 kHz

Stereo Separation dBX 30 dB L off, R 50%, 1 kHz

EIAJ (M) PERFORMANCE Measured at analog audio output, video = 75% color bar,

fSC = 4.5 MHz, fFM = 1 kHz, Δf = 25 kHz (100%),

deemphasis = 75 μs, measuring BW = 20 Hz to 15 kHz

Dynamic Range

Stereo Channel 58 dB Stereo L or R, 100%, 1 kHz

Dual Channel 56 dB Dual channel with Mono 100%, 1 kHz

Total Harmonic Distortion + Noise

Stereo Channel −56 dB Stereo L or R, 100%, 1 kHz

Dual Channel −47 dB Dual 50%, 1 kHz

Frequency Response fFM = 20 Hz to 10 kHz

Stereo Channel +0.03/−0.53 dB Stereo L or R, 100%

Dual Channel +0.17/−1.4 dB Dual 100%, Mono 100%, 1 kHz

Crosstalk

Main-to-Dual Channel −75 dB Main 100%, 1 kHz

Dual-to-Main Channel −83 dB Dual 100%, 1 kHz

Stereo Separation 39 dB Stereo L or R, 100%, 1 kHz

ADAV4622

Rev. B | Page 6 of 28

Parameter Min Typ Max Unit Test Conditions/Comments

A2 (M) PERFORMANCE Measured at analog audio output, video = 75% color bar,

fSC1 = 4.5 MHz, fSC2 = 4.724 MHz, fFM = 1 kHz, Δf = 25 kHz

(100%), deemphasis = 75 μs, measuring BW = 20 Hz to

15 kHz

Dynamic Range 60 dB Mono 100%, 1 kHz

Total Harmonic Distortion + Noise −64 dB Mono 100%, 1 kHz

Frequency Response +0.4/−0.05 dB Mono 100%, fFM = 25 Hz to 15 kHz

Crosstalk (Dual) −88 dB Mono or dual off, 100%, 1 kHz

Channel Separation (Stereo) 66 dB Stereo L off, R 50%, 1 kHz

A2 (DK1/DK2/DK3) PERFORMANCE Measured at analog audio output, video = 75% color bar,

fSC1 = 6.5 MHz, fSC2 = 6.742 MHz, (DK2 worst case),

fFM = 1 kHz, Δf = 50 kHz (100%), deemphasis = 50 μs,

measuring BW = 20 Hz to 15 kHz

Dynamic Range 74 dB Mono 100%, 1 kHz

Total Harmonic Distortion + Noise −66 dB Mono 100%, 1 kHz

Frequency Response +0.1/−0.3 dB Mono 100%, fFM = 20 Hz to 15 kHz

Crosstalk (Dual) −88 dB Mono or dual off, 100%, 1 kHz

Channel Separation (Stereo) 77 dB Stereo L off, R 50%, 1 kHz

A2 (BG) PERFORMANCE Measured at analog audio output, video = 75% color bar,

fSC1 = 5.5 MHz, fSC2 = 5.742 MHz, fFM = 1 kHz,

Δf = 50 kHz (100%), deemphasis = 50 μs,

measuring BW = 20 Hz to 15 kHz

Dynamic Range 74 dB Mono 100%, 1 kHz

Total Harmonic Distortion + Noise −61 dB Mono 100%, 1 kHz

Frequency Response +0.1/−0.3 dB Mono 100%, fFM = 25 Hz to 15 kHz

Crosstalk (Dual) −89 dB Mono or dual off, 100%, 1 kHz

Channel Separation (Stereo) 70 dB Stereo L off, R 50%, 1 kHz

NICAM (I) PERFORMANCE Measured at analog audio output, video = 75% color bar,

1 kHz, unweighted, deemphasis = J17, measuring BW = 20

Hz to 15 kHz

Dynamic Range 72 dB Stereo L or R, 0 dB, 1 kHz

Total Harmonic Distortion + Noise −63 dB Stereo L or R, 0 dB, 1 kHz

Frequency Response −1.3/+0.07 dB Stereo L or R, 0 dB

Crosstalk −80 dB Mono or dual, 0 dB, 1 kHz

Stereo Separation 73 dB L or R, 0 dB, 1 kHz

Bit Error Rate 0 FM and NICAM nominal conditions

NICAM (BG, DK, L) PERFORMANCE Measured at analog audio output, video = 75% color bar,

1 kHz, unweighted, deemphasis = J17, measuring BW =

20 Hz to 15 kHz

Dynamic Range 72 dB Stereo L or R, 0 dB, 1 kHz

Total Harmonic Distortion + Noise −63 dB Stereo L or R, 0 dB, 1 kHz

Frequency Response −1.3/+0.07 dB Stereo L or R, 0 dB

Crosstalk −80 dB Mono or dual, 0 dB, 1 kHz

Stereo Separation 74 dB L or R, 0 dB, 1 kHz

Bit Error Rate 0 FM and NICAM nominal conditions

AM PERFORMANCE Measured at analog audio output, 1 kHz,

AM carrier 6.5 MHz measuring BW = 20 Hz to 15 kHz

Dynamic Range

RMS/FLAT 55 dB AM = 54% modulation

QP/CCIR 35 dB CCIR filter, AM = 54% modulation

Total Harmonic Distortion + Noise −49 dB AM = 54% modulation

Frequency Response +0.03/−1.2 dB AM = 54% modulation

REFERENCE SECTION

Absolute Voltage VREF 1.53 V

VREF Temperature Coefficient 100 ppm/°C

ADAV4622

Rev. B | Page 7 of 28

Parameter Min Typ Max Unit Test Conditions/Comments

ADC SECTION

Number of Channels 4 Two stereo channels

Full-Scale Input Level 100 μA rms

Resolution 24 Bits

Dynamic Range (Stereo Channel)

A-Weighted 95 dB −60 dBFS with respect to full-scale analog input

Total Harmonic Distortion + Noise (Stereo

Channel)

−90 dB −3 dBFS with respect to full-scale analog input

Gain Mismatch 0.2 dB Left- and right-channel gain mismatch

Crosstalk (Left to Right, Right to Left) −110 dB

Gain Error −1 dB Input signal is 100 μA rms

Current Setting Resistor (RISET) 20 kΩ External resistor to set current input range of ADC for

nominal 2.0 V rms input signal

Power Supply Rejection −87 dB 1 kHz, 300 mV p-p signal at AVDD

ADC DIGITAL DECIMATOR FILTER

CHARACTERISTICS

At 48 kHz, guaranteed by design

Pass Band 22.5 kHz

Pass-Band Ripple ±0.0002 dB

Stop Band 26.5 kHz

Stop-Band Attenuation 100 dB

Group Delay 1040 μs

PWM SECTION

Frequency 384 kHz Guaranteed by design

Modulation Index 0.976 Guaranteed by design

Dynamic Range

A-Weighted 98 dB −60 dB with respect to full-scale code input

Total Harmonic Distortion + Noise −78 dB −3 dB with respect to full-scale code input

DAC SECTION

Number of Auxiliary Output Channels 8 Four stereo channels

Resolution 24 Bits

Full-Scale Analog Output 1 V rms

Dynamic Range

A-Weighted 94 dB −60 dBFS with respect to full-scale code input

Total Harmonic Distortion + Noise −86 dB −3 dBFS with respect to full-scale code input

Crosstalk (Left to Right, Right to Left) −102 dB

Interchannel Gain Mismatch 0.1 dB Left- and right-channel gain mismatch

Gain Error 0.525 dB 1 V rms output

DC Bias 1.53 V

Power Supply Rejection −90 dB 1 kHz, 300 mV p-p signal at AVDD

Output Impedance 235 Ω

DAC DIGITAL INTERPOLATION FILTER

CHARACTERISTICS

At 48 kHz, guaranteed by design

Pass Band 21.769 kHz

Pass-Band Ripple ±0.01 dB

Transition Band 23.95 kHz

Stop Band 26.122 kHz

Stop-Band Attenuation 75 dB

Group Delay 580 μs

HEADPHONE AMPLIFIER Measured at headphone output with 32 Ω load

Number of Channels 4 Two stereo channels

Full-Scale Output Power 31 mW rms 1 V rms output

Dynamic Range

A-Weighted 93 dB −60 dBFS with respect to full-scale code input

Total Harmonic Distortion + Noise −83 dB −3 dBFS with respect to full-scale code input

Interchannel Gain Mismatch 0.1 dB

DC Bias 1.53 V

Power Supply Rejection −85 dB 1 kHz, 300 mV p-p signal at AVDD

ADAV4622

Rev. B | Page 8 of 28

Parameter Min Typ Max Unit Test Conditions/Comments

SRC

Number of Channels 8 Two channels (SRC1), six channels (SRC2)

Dynamic Range

A-Weighted 115 dB −60 dBFS input (worst-case input fS= 50 kHz)

Total Harmonic Distortion + Noise −113 dB −3 dBFS input (worst-case input fS= 50 kHz)

Sample Rate 5 50 kHz

SRC DIGITAL INTERPOLATION FILTER

CHARACTERISTICS

At 48 kHz, guaranteed by design

Pass Band 21.678 kHz

Pass-Band Ripple 0.005 dB

Stop Band 26.232 kHz

Stop-Band Attenuation 110 dB

Group Delay 876 μs

DIGITAL INPUT/OUTPUT

Input Voltage High (VIH) 2.0 ODVDD V

Input Voltage Low (VIL) 0.8 V

Input Leakage

IIH (SDIN0, SDIN1, SDIN2, SDIN3, LRCLK0,

LRCLK1, LRCLK2, BCLK0, BCLK1, BCLK2,

SPDIF_OUT, SPDIF_IN)

40 μA VIH = ODVDD, equivalent to a 90 kΩ pull-up resistor

IIH (RESET) 13.5 μA VIH = ODVDD, equivalent to a 266 kΩ pull-up resistor

IIL (SDO0, SCL, SDA) −40 μA VIL = 0 V, equivalent to a 90 kΩ pull-down resistor

Output Voltage High (VOH) 2.4 V IOH = 0.4 mA

Output Voltage Low (VOL) 0.4 V IOL = −2 mA

Output Voltage High (VOH) (MCLK_OUT) 1.4 V IOH = 0.4 mA

Output Voltage Low (VOL) (MCLK_OUT) 0.4 V IOL = −3.2 mA

Input Capacitance 10 pF

SUPPLIES

Analog Supplies (AVDD) 3.0 3.3 3.6 V

Digital Supplies (DVDD) 1.65 1.8 2.0 V

Interface Supply (ODVDD) 3.0 3.3 3.6 V

Supply Currents MCLK = 24 MHz, ADCs and DACs active, headphone

outputs active and driving a 16 Ω load

Analog Current 260 mA

Digital Current 350 mA

Interface Current 2 mA

Power Dissipation 1.495 W

Standby Currents ADC, DAC, and headphone outputs floating, RESET low,

MCLK = 24 MHz

Analog Current 10 mA

Digital Current 4 mA

Interface Current 1.6 mA

TEMPERATURE RANGE

Operating Temperature −40 +85 °C

Storage Temperature −65 +150 °C

ADAV4622

Rev. B | Page 9 of 28

TIMING SPECIFICATIONS

Table 2.

Parameter Description Min Max Unit Comments

MASTER CLOCK AND RESET

fMCLKI MCLKI frequency 3.072 24.576 MHz

tMCH MCLKI high 10 ns

tMCL MCLKI low 10 ns

tRESET RESET low 200 ns

MASTER CLOCK OUTPUT

tJIT Period jitter 800 ps

tCH MCLK_OUT high 45 55 %

tCL MCLK_OUT low 45 55 %

I2C PORT

fSCL SCL clock frequency 400 kHz

tSCLH SCL high 600 ns

tSCLL SCL low 1.3 μs

Start Condition

tSCS Setup time 600 ns Relevant for repeated start condition

tSCH Hold time 600 ns After this period, the first clock is generated

tDS Data setup time 100 ns

tSCR SCL rise time 300 ns

tSCF SCL fall time 300 ns

tSDR SDA rise time 300 ns

tSDF SDA fall time 300 ns

Stop Condition

tSCS Setup time 0 ns

SERIAL PORTS

Slave Mode

tSBH BCLK high 40 ns

tSBL BCLK low 40 ns

fSBF BCLK frequency 64 × fS

tSLS LRCLK setup 10 ns To BCLK rising edge

tSLH LRCLK hold 10 ns From BCLK rising edge

tSDS SDIN setup 10 ns To BCLK rising edge

tSDH SDIN hold 10 ns From BCLK rising edge

tSDD SDO delay 50 ns From BCLK falling edge

Master Mode

tMLD LRCLK delay 25 ns From BCLK falling edge

tMDD SDO delay 15 ns From BCLK falling edge

tMDS SDIN setup 10 ns From BCLK rising edge

tMDH SDIN hold 10 ns From BCLK rising edge

ADAV4622

Rev. B | Page 10 of 28

TIMING DIAGRAMS

MCLKI

RESET

MP = 1/

MCLKI

RESET

07068-004

Figure 2. Master Clock and Reset Timing

07068-036

JIT

DVDD

GND

Figure 3. Master Clock Output Timing

LRCLK1

BCLK1

SDINx

SDO0

tSLS

tSLH

tSDS tSDH

tSDD

07068-002

Figure 4. Serial Port Slave Mode Timing

LRCLK1

BCLK1

SDINx

SDO0

tMLD

tMDS tMDH

tMDD

07068-003

Figure 5. Serial Port Master Mode Timing

07068-033

ODVDD

100µA I

TO OUTPUT

50pF

Figure 6. Load Circuit for Digital Output Timing Specifications

Inhaltsverzeichnis

Andere Analog Devices Computerhardware Handbücher

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