Sony XT-XM1 - Xm Satellite Radio Tuner, Service Manual

Page: 5 / 14

XT-XM1
5 5
• IC Block Diagrams
IC103 TA2050F (EL) IC106 BA8272FV-E2
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16 NC
IN(–)1
IN(+)1
IN(+)2
IN(–)2
NC
NC
NC
OUT1
VREF
NC
GND
NC
VCC
NC
OUT2
1
2 3
4
5 6 7
8 9 10 14 13 12 11
VCC BUS ON LINK OFF CLK OUT DATA OUT DATA IN
BUS RESET
BUS DATA
VREF
BUS CLK
GND
BUS ON IN
BUS ON OUT
RESET
RESET
SWITCH
• Waveform
1 IC107
qs
(OSC2)
2.7 Vp-p
54 ns
3-2. IC PIN FUNCTION DESCRIPTION
•
IC107 MN101C49GYB1 (SYSTEM CONTROLLER)
Pin No. Pin Name I/O Description
1 VREF– I
Reference voltage (0V) input terminal (for A/D converter)
2 FLASH I
Internal flash memory data write mode detection signal input terminal “L”: data write mode
3 to 9 (IN-L) I Not used
10 VREF+ I Reference voltage (+5V) input terminal (for A/D converter)
11 VDD — Power supply terminal (+5V)
12
OSC2
O Main system clock output terminal (18.432 MHz)
13
OSC1
I Main system clock input terminal (18.432 MHz)
14 VSS — Ground terminal
15 XI (VSS) I Sub system clock input terminal Not used
16 XO O Sub system clock output terminal Not used
17
MMOD (VSS) I
Memory mode selection signal input terminal Not used
18 TX O IS bus “TXRX” signal output terminal
19 RX I IS bus “TXRX” signal input terminal
20 IS FOUT O IS bus “FRAME” signal output terminal
21 SO O Serial data output to the SONY bus interface
22
SI
I Serial data input from the SONY bus interface
23
SCLK
O Serial clock signal output to the SONY bus interface
24 GND — Ground terminal
25 LINKOFF O Bus on/off control signal output “L”: bus on
26 BUSON I Bus on/off control signal input from the SONY bus interface “H”: bus on
27 (IN-L) I
Not used
28 BU IN I Battery detection signal input terminal “L” is input at low voltage
29 IS FIN I IS bus “FRAME” signal input terminal
30, 31 (IN-L) I Not used
32 VDD2 — Power supply terminal (+5V)
33 X T RESET
I
System reset signal input from the reset signal generator “L”: reset
“L” is input for several 100 msec after power on, then it changes to “H”
34 to 40 (IN-L) I Not used
41 VPP — Power supply terminal (+5V)
42 PC-TX O
Not used
43 PC-RX I
Not used
44 NC — Not used
45 E2PROM-SCL O Serial data transfer clock signal output to the EEPROM
46 NC — Not used
47 E2PROM-SDA I/O Two-way data bus with the EEPROM
48 to 62 NC —
Not used
63 X M-RESET O Reset signal output to the MAIN board “L”: reset
64 X M-STANDBY O Standby signal output to the MAIN board “L”: standby
65 P-ON O +9V power supply on/off control signal output “H”: power on
66 SELECT (H-XM) O
Relay drive signal output “H”: XM on
67 X MUTE O
Muting on/off control signal output “L”: muting on
68 to 94 NC — Not used
95 DAVSS — Ground terminal (for D/A converter)
96to 99 NC — Not used
100 DAVDD — Power supply terminal (+5V) (for D/A converter)