Aiwa 4ZG-1 Service Manual page 27

IC, SM5878M
Pin No. Pin Name
1 MUTE
2 DEEM
3 CKO
4 DVSS
5 BCKI
6 DI
7 DVDD
8 LRCI
9 TSTN
10 TO1
11 AVDDL
12 LO
13 AVSS
14 RO
15 AVDDR
16 MUTEO
17 XVDD
18 XTI
19 XTO
20 XVSS
21 DS
22 RSTN
23 MODE
24 ATCK
I/O
MODE = H: Soft mute ON/OFF terminal. (Mute at H).
I
MODE = L: Attenuator level DOWN/UP terminal. (DOWN at H).
I De-emphasis ON/OFF terminal. (De-emphasis ON at H).
O Oscillator clock output. (16.9344 MHz).
— Digital VSS terminal.
I Bit clock input terminal.
I Serial data input terminal.
— Digital VDD terminal.
I Sample rate clock (fs) input terminal. (H = L ch/L = R ch).
I Test input. ("H" or open during normal operation)
O Test output 1. (Normally low level output).
— Analog VDD terminal. (For L ch).
O Left channel analog output terminal.
— Analog VSS terminal.
O Right channel analog output terminal.
— Analog VDD terminal. (For R ch).
O Infinity zero detection output.
— X'tal system VDD terminal.
I X'tal oscillator terminal. (Or external clock input terminal of 16.9344 MHz).
O X'tal oscillator terminal.
— X'tal system VSS terminal.
I Double-speed/normal playback selection. (Double-speed at H).
I Reset terminal. (Reset at L).
I Soft mute/Attenuator mode selection. (Soft mute at H).
I Attenuator level setup clock (Ignored when MODE = H).
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Description