Diagrams; Ic Pin Descriptions - Sony SPP-111 Service Manual

5-1. IC PIN DESCRIPTIONS

• IC501 SB662104A-4L43-TLM (SYSTEM CONTROL) (BASE UNIT)
Pin No. Pin Name
1 STB
2 DATA
3 CLK
4 RX-DATA
5 SIG-IN
6 H-MUTE
7 TX-DATA
8 VSS
9 OSC2
10 OSC1
11 VDD
12 RESET
13 TEST
14 POW-DET
15 MBR
16 PAGE
17 DIAL MODE
18 CHG-DET
19 RSSI H/L
20 DP
21 DTMF
22 TX +B CTRL
23 – 26 M1 – 4
27 – 29 TEST3 – 1
30 RING
SECTION 5

DIAGRAMS

I/O
O Strobe signal output to PLL.
O Serial data output to PLL.
O Serial clock output to PLL.
I RX data input
I RSSI/PLL-LOCK signal input (L: RSSI, H: PLL-LOCK)
O Half mute control output (L: Mute ON)
O TX data, external system alarm output
— Ground
O Crystal oscillation output (4.048 MHz)
I Crystal oscillation input (4.048 MHz)
— Power supply pin (+3 V)
I System reset input (L: Reset)
I Test pin (Connect to ground in this set.)
I Power failure detection input (L: Power failure)
I Make 30/40 (%) select input (H: 30%, L: 40%)
I HANDSET LOCATOR input (H: input)
I DIAL MODE select input
I Charge detection input (L: Charge)
O RSSI sensitivity select output (L: Low sensitivity)
O Dial pulse ON/OFF control output
O DTMF generator output
I TX B+ ON/OFF control input (L: TX ON)
I Channel setting for test mode 1 – 4.
I Test mode setting 3 – 1
I Ring detection input (L: Ring input)
– 16 –
Pin Description