Sony STR-DB870 - Page 52

52
STR-DB870/DB1070
Pin No. Pin Name I/O Description
88
HACN1 I
Host acknowledge signal input from the audio DSP1(IC1501)
89
XRST1 O
Reset signal output to the audio DSP1 (IC1501)
90
PM1 O
PLL initialize signal output to the audio DSP1 (IC1501)
91
ADC : RST O
Reset signal output to the A/D converter (IC1101)
92
DACINT O
Reset signal output to the D/A converter (IC1201)
93
DA1LAT O
Serial data latch pulse output to the D/A converter (IC1201)
94
(PG3) DACCLK O
Serial data transfer clock signal output to the D/A converter (IC1201, 1202)
95
(PG4) DACDI O
Serial date output to the D/A converter (IC1201, 1202)
96
(PG5) 2EXLOCK O
Extarnal lock signal output to the audio DSP (IC1601)
97
VCC —
Power supply terminal (+3.3V)
98
VSS —
Ground terminal
99
EEPROM SDA I/O
Two-way data bus with the EEPROM (IC1701)
100
EEPROM SCL O
Serial data transfer clock signal output to the EEPROM (IC1701)
101
VSS —
Ground terminal
102
HCLK O
Host clock signal output to the audio DSP (IC1501, 1601)
103
HDIN O
Host serial data output to the audio DSP (IC1501, 1601)
104
HDOUT2 I
Host serial data input from the audio DSP (IC1601)
105
CLK O
OSD serial data transfer clock signal output to the select switch (IC307)
106
DATA O
OSD serial data output to the select switch (IC307)
107
LAT O
OSD serial data latch pulse output to the select switch (IC307)
108
DAIDO I
Serial data input from the D/A converter (IC1201)
109
SOTI O
UART signal output terminal Not used (fixed at “L”)
110
SIN1 I
UART signal input terminal Not used (fixed at “L”)
111
CLK O
Serial data transfer clock signal output to the FL display driver (IC1601)
112
DIN O
Serial data output to the FL display driver (IC1601)
113
LAT O
Serial data latch pulse output to the FL display driver (IC1601)
114
CLR O
Clear signal output to the FL display driver (IC1601)
115
VOL IC LAT O
Serial data latch pulse output to the electrical volume (IC401, 501, 601, 701)
116
SYSTEM MUTE O
System muting control signal output terminal
117
AC MUTE O
Audio muting control signal output to the poweramp (IC403, 503, 603)
118
PROTECTOR I
Over load detection signal input from the protect circuit “L”: protect detect
119
DA2LAT O
Serial data latch pulse output to the A/D, D/A converter (IC1202)
120
CD DIRECT O
CD direct relay drive signal output terminal “H”: relay on
121
ANALOG DIGITAL O
Analog/digital select signal output to the TC7WH157FU (IC1407)
“L”: analog, “H”: digital
122
VCC —
Power supply terminal (+3.3V)
123
A. DIRECT O
MULT/2CH DIRECT select signal output terminal Not used (open)
124
NC —
Not used (open)
125
NC —
Not used (open)
126
DAVS —
Ground terminal (for digital)
127
DAVC —
Power supply terminal (+3.3V) (for digital)
128
AVCC —
Power supply terminal (+3.3V) (for analog)
129
AVRH —
Reference voltage input (+3.3V) terminal (for analog)
130
AVRL —
Connect to ground (for analog)
131
AVSS —
Ground terminal (for terminal)