Panasonic KX-FLB802CX

22
KX-FLB802CX/KX-FLB812CX/KX-FLB802CXS/KX-FLB812CXS
6.3.4. ANALOG SECTION
Composed of ITS circuit and NCU circuit.
6.3.4.1. ANALOG GATE ARRAY (IC209)
The cross-point switch installed in this IC makes it possible to change the circuit configuration
for any analog signals such as the fax signals sent from the digital board. In addition,
this analog gate array integrates a handset circuit, input/output ports, etc.
This IC is controlled by SOC (IC600) through GATE ARRAY (IC604) on the digital board.
Explanation of ANALOG GATE ARRAY (IC209 on the ANALOG Board)
No. Name Function No. Name Function
1 STR Strobe input 19 NC Not used
2 CLOCK Clock input 20 EXTIN Ext amp output
3 DATA Data input 21 EXTOUT Ext amp input
4 VDD Logic power supply 22 LINEOUT Line amp output
5 VOXOUT VOX output 23 LINEIN Line amp input
6 VOXDET VOX detection adjustment 24 MODEMTXIN MODEM TX amp input
7 VOXIN VOX input 25 MODEMTXOUT MODEM TX amp output
8 VSS Logic ground 26 NC Not used
9 NC Not used 27 TONEIN Tone amp input
10 ROUT2 HS receiver amp output 2 28 NC Not used
11 ROUT1 HS receiver amp output 1 29 NC Not used
12 RIN HS receiver amp input 30 GND Analog ground
13 VCC Analog ground 31 MODEMRXOUT MODEM RX amp output
14 HSMICIN1 HS mic amp input 1 32 VLIN Volume amp input
15 HSMICIN2 HS mic amp input 2 33 VREF Reference voltage output
16 HSMICOUT HS mic amp output 34 VLOUT Volume amp output
17 NC Not used 35 SPOUT Speaker amp output
18 NC Not used 36 SPIN Speaker amp input