ADAV4622 Analog Devices, ADAV4622 Datasheet
ADAV4622
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ADAV4622 Summary of contents
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... Trademarks and registered trademarks are the property of their respective owners. Audio Processor for Advanced TV with Sound IF Demodulator and Stereo Decoder 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. ...
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... ADAV4622 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 ...
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... SRC ASYNCHRONOUS DIGITAL INPUT 6-CHANNEL SRC ASYNCHRONOUS DIGITAL INPUT SYNCHRONOUS MULTICHANNEL DIGITAL INPUTS ADC A-V SYNCHRONOUS ADC DELAY MEMORY Figure 1. ADAV4622 with PWM-Based Speaker Outputs Rev Page ADAV4622 SDO0/AD0 DIGITAL BCLK1 OUTPUTS LRCLK1 SPDIF_IN0 SPDIF_IN1 SPDIF_IN2 SPDIF_IN3 SPDIF_IN4 S/PDIF I/O SPDIF_IN5 ...
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... ADAV4622 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 = kHz, ADC input signal = DAC output signal = 1 kHz, unless otherwise noted. PERFORMANCE PARAMETERS Table 1. Parameter SIF ADC INPUT SECTION Analog Input Frequency Range ...
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... Rev Page ADAV4622 Test Conditions/Comments A2 (DK, I, BG), Mono 100 mV 400 Hz, SIF FM Δf = 200 kHz, rms detector BTSC (M, N), Mono 100 mV 400 Hz, SIF FM Δf = 100 kHz, rms detector A2 (M), Mono 100 mV 400 Hz, ...
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... ADAV4622 Parameter A2 (M) PERFORMANCE Dynamic Range Total Harmonic Distortion + Noise Frequency Response Crosstalk (Dual) Channel Separation (Stereo) A2 (DK1/DK2/DK3) PERFORMANCE Dynamic Range Total Harmonic Distortion + Noise Frequency Response Crosstalk (Dual) Channel Separation (Stereo) A2 (BG) PERFORMANCE Dynamic Range Total Harmonic Distortion + Noise Frequency Response ...
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... V −85 dB Rev Page ADAV4622 Test Conditions/Comments Two stereo channels −60 dBFS with respect to full-scale analog input −3 dBFS with respect to full-scale analog input Left- and right-channel gain mismatch Input signal is 100 μA rms External resistor to set current input range of ADC for nominal 2 ...
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... ADAV4622 Parameter SRC Number of Channels Dynamic Range A-Weighted Total Harmonic Distortion + Noise Sample Rate SRC DIGITAL INTERPOLATION FILTER CHARACTERISTICS Pass Band Pass-Band Ripple Stop Band Stop-Band Attenuation Group Delay DIGITAL INPUT/OUTPUT Input Voltage High ( Input Voltage Low ( Input Leakage ...
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... From BCLK rising edge BCLK rising edge 10 ns From BCLK rising edge 50 ns From BCLK falling edge 25 ns From BCLK falling edge 15 ns From BCLK falling edge 10 ns From BCLK rising edge 10 ns From BCLK rising edge Rev Page ADAV4622 ...
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... ADAV4622 TIMING DIAGRAMS MCLKI MCLKI RESET DVDD GND t RESET Figure 2. Master Clock and Reset Timing Figure 3. Master Clock Output Timing t SLH LRCLK1 t SLS BCLK1 SDINx t t SDS SDH SDO0 t SDD Figure 4. Serial Port Slave Mode Timing ...
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... DVDD 0.18V 1.0s MAX AVDD ODVDD 0.33V 1.0s MAX Figure 7. Power-Up Sequence Timing 1.65V DVDD 0.18V 1.0s MAX 3.0V AVDD ODVDD 1.0s MAX Figure 8. Power-Down Sequence Timing Rev Page 1.8V 0V 3.3V 3.0V 0V 1.8V 0V 3.3V 0.33V 0V ADAV4622 ...
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... ADAV4622 ABSOLUTE MAXIMUM RATINGS Table 3. Parameter Rating DVDD to DGND 2.2 V ODVDD to DGND AVDD to AGND AGND to DGND −0 +0.3 V Digital Inputs DGND − 0 ODVDD + 0.3 V Analog Inputs AGND − 0 AVDD + 0.3 V Reference Voltage Indefinite short circuit to ground Soldering (10 sec) 300° ...
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... SIF ADC Common-Mode Reference (Typical 1 V). SIF ADC Negative Reference (Typical 0.6 V). SIF Input 1. SIF PGA Reference. SIF Input 2. SIF AGND. SIF Supply (3.3 V). Digital Ground. Digital Supply (1.8 V). Active Low Mute Request Input Signal. Rev Page ADAV4622 60 HPOUT2L 59 AVDD HPOUT1R 58 HPOUT1L 57 AGND 56 ...
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... ADAV4622 Pin No. Mnemonic 16 SDA 17 SCL 18 SPDIF_IN5/LRCLK2 19 SPDIF_IN6/BCLK2 20 DGND 21 DVDD 22 SDIN0 23 SDIN1 24 SDIN2 25 SPDIF_IN0/SDIN3 26 SPDIF_IN1/LRCLK0 27 SPDIF_IN2/BCLK0 28 ODGND 29 ODVDD 30 MCLK_OUT 31 DVDD 32 DGND 33 MCLKI/XIN 34 XOUT 35 SPDIF_IN4/BCLK1 36 SPDIF_IN3/LRCLK1 37 SDO0/AD0 38 SPDIF_OUT/SDO1 39 PWM_READY 40 DVDD 41 DGND 42 PWM1A 43 PWM1B 44 PWM2A 45 PWM2B 46 PWM3A 47 PWM3B 48 PWM4A 49 PWM4B 50 RESET 51 DVDD 52 DGND 53 AVDD ...
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... ISET Description DAC Supply (3.3 V). DAC Ground. DAC Ground. DAC Supply (3.3 V). Left Auxiliary Output 1. Right Auxiliary Output 1. Left Auxiliary Output 2. Right Auxiliary Output 2. Left Auxiliary Input 2. Right Auxiliary Input 2. Left Auxiliary Input 1. Right Auxiliary Input 1. ADC Current Setting. Rev Page ADAV4622 ...
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... ADAV4622 TYPICAL PERFORMANCE CHARACTERISTICS 0 –20 –40 –60 –80 –100 –120 –140 –160 –180 0 192 384 FREQUENCY (kHz) Figure 10. DAC Composite Filter Response (48 kHz) 0 –20 –40 –60 –80 –100 –120 –140 –160 FREQUENCY (kHz) Figure 11. DAC Band-Pass Filter Response (48 kHz) 0.6 0.4 0.2 0 –0.2 – ...
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... Figure 19. ADC Total Harmonic Distortion + Noise 0 –20 –40 –60 –80 –100 –120 –140 0 16000 20000 Figure 20. Sample Rate Converter Transfer Function 16000 20000 Rev Page ADAV4622 4000 8000 12000 16000 FREQUENCY (Hz) 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 NORMALIZED FREQUENCY 20000 1 .0 ...
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... Deviation Mode In some regions, the transmitted signal can deviate from the specification. In order for the ADAV4622 to decode these high deviation signals correctly, the appropriate modulation level must be selected. AM Rejection Ratio AM rejection ratio is given by the ratio of FM (deviation = 54%) demodulated audio level vs ...
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... SPDIF_IN pins. This pin can also be configured as an additional serial data output (SDO1 alternate function. MCLKI/XIN Master clock input. The ADAV4622 uses a PLL to generate the appropriate internal clock for the audio processing core. A clock signal of a suitable frequency can be connected directly to this ...
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... MUTE Mute input request. This active-low input pin controls the muting of the output ports (both analog and digital) from the ADAV4622. When low, it asserts mute on the outputs that are enabled in the audio flow. RESET Active-low reset signal. After RESET goes high, all the circuit blocks are powered down ...
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... FUNCTIONAL DESCRIPTIONS SIF PROCESSOR Supported SIF Standards The ADAV4622 supports all worldwide standards, as shown in Table 6. Table 6. ADAV4622 Worldwide SIF Standards System Sound SC1 (MHz) M BTSC 4.5 N BTSC 4.5 M EIAJ 4 4 5.5 BG NICAM 5.5 I Mono 6.0 I NICAM 6.0 DK1 A2 6.5 DK2 A2 6.5 DK3 A2 6.5 DK NICAM 6.5 L Mono 6.5 L NICAM 6.5 SIF Demodulation Figure 22 shows a block diagram of the SIF demodulation block ...
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... MCLKI edges to determine the state of the pin (high or low). Because the pin has an internal pull-down resistor default, the address of the ADAV4622 is 0x34 (write) and 0x35 (read). An alternate address, 0x36 (write) and 0x37 (read), is available by tying the SDO0 pin to ODVDD via a 10 kΩ resistor. The I interface supports a clock frequency up to 400 kHz ...
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... Serial Data Interface section for more details). Asynchronous Inputs The ADAV4622 has two SRCs, SRC1 and SRC2, that can be used for converting digital data, which is not synchronous to the master clock. Each SRC can accept input sample rates in the range of 5 kHz to 50 kHz ...
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... In the ADAV4622, the main outputs are available as four PWM output channels, which are suitable for driving Class-D amplifiers. PWM_Ready is a status pin used to signify that the ADAV4622 PWM outputs are in a valid state. During PWM power-up and power-down, this pin remains low to signify that the outputs are not in a valid state ...
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... ENCODER Figure 32. S/PDIF Output HARDWARE MUTE CONTROL The ADAV4622 mute input can be used to mute any of the analog or digital outputs. When the MUTE pin goes low, the selected outputs ramp to a muted condition. Unmuting is handled in one of two ways and depends on the register setting. ...
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... ADAV4622 LOADING A CUSTOM AUDIO PROCESSING FLOW The ADAV4622 can load a custom audio flow from an external ROM. The boot process is initiated by a simple control register write. The EEPROM device address and the EEPROM start address for the audio flow ROMs can all be programmed. ...
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... AUXIN1R AUXIN2L AUXIN2R SDIN0 SDIN1 SDIN2/SRC2 CHANNEL B SDIN3/SRC2 CHANNEL C SRC1 SRC2 CHANNEL A SUB CHANNEL BEEPER Figure 34. Default Audio Processing Flow Rev Page ADAV4622 PWM1 (LHIGH) PWM2 (RHIGH) PWM3 (LLOW) PWM4 (RLOW) SUB CHANNEL TO INPUT MUXES HPOUT1L/ AUXOUT4L HPOUT1R/ AUXOUT4R AUXOUT2L/ ...
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... Model Temperature Range 1 ADAV4622BSTZ −40°C to +85°C 1 EVAL-ADAV4622EBZ RoHS Compliant Part. In addition backward compatible with conventional SnPb soldering processes. This means the electroplated Sn coating can be soldered with Sn/Pb solder pastes at conventional reflow temperatures of 220°C to 235°C. 2 Purchase of licensed I ...