Sharp 902SH Service Manual page 100

IC1700 VHIAK4569++-1L (AK4569): PCM CODEC
Pin No. Terminal name
1 PDN
2 CSN
3 CCLK
4 CDTI
5 LRCK
6 MCLK
7 BICK
8 SDTI
9 SDTO
10 DVDD
11 DVSS
12 HVSS
13 HVDD
14* HPR
15* HPL
16 MUTET
17* MOUT
18 MIN
19 RIN
20 LIN
21 VREF
22 VCOM
23 AVSS
24 AVDD
25 AINR2
26 AINL2
27 AINR1
28 AINL1
Note: Keep the digital input pin connected.
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
CONFIDENTIAL
Input/Output
Input Power down pin
When this pin is set at "L", the device is powered down internally and reset. When the
power is turned on, input "L" once.
Input Control data chip select pin
Input Control clock input pin
Input Control data input pin
Input L/R clock pin
Determines an audio data channel
Input Master clock input pin
Input Serial bit clock pin
Clock for shifting audio data
Input Audio data input pin
Output Audio data output pin
When PMADC bit = "0", pin SDTO is DVSS
– Digital power supply pin
– Digital earth pin
– Earth pin for headphone amplifier
– Power supply pin for headphone amplifier
Output R-ch HP-Amp output pin (Not used)
When PMHPR bit = "0", pin HPR is HVSS
Output L-ch HP-Amp output pin (Not used)
When PMHPL bit = "0", pin HPL is HVSS
Output Mute time constant control pin
When PMHPL bit = PMHPR bit = "0", pin MUTET is HVSS
Output Monaural analogue output pin (Not used)
When PMMO bit = "0", pin MOUT is Hi-Z
Input Monaural analogue input pin
Input R-ch analogue input pin
Input L-ch analogue input pin
Output Reference voltage output pin, 2.1 V (referenced to typ. AVSS)
When PMVCM bit = "0", pin VREF is AVSS
Output Common voltage pin, 1.25 V (referenced to typ. AVSS)
When PMVCM bit = "0", pin VCOM is AVSS
– Analogue earth pin
– Analogue power supply pin
Input ADC R-ch analogue input 2 (MIC input)
Input ADC L-ch analogue input 2 (MIC input)
Input ADC R-ch analogue input 1 (LINE input)
Input ADC L-ch analogue input 1 (LINE input)
Description of terminal
6 – 23
902SH