Motorola HT1250-LS+ - Receiving Phone Calls

5-20 Schematic Diagrams, Overlays, and Parts Lists
Rdy/Req
SW_B+
INT_EXT_Vdd
Key_Intrp
PTT
Rx_Aud_Snd
Tx_Aud_Snd
Rx_Aud_Rtn
DB1
Tx_Aud_Rtn
LED_EN
Vddd
DB2
DB3
DB0
DB5
VS_GAINSEL
DB4
R/W*
RST*
A0
Flat_Tx_Rtn
DB6
40-PIN CONNECTOR
ON
VS_INT
LCD_SEL
SCK_Snd
VS_AUDSEL
DB7
SrD_Rtn
VS_RAC
VS_CS
J400
Key_Row
OFF_BATT_DATA_OUT
EXT_MIC
SrD_Snd
Gnd
Det_Aud_Snd
Opt_Bd_En
Key_Col
C4020
1000pF
J400-10
J400-16
J400-23
100pF
C466
E407
J400-12
J400-28
J400-34
E402
J400-17
J400-26
E406
J400-29
R481
24K
J400-11
E405
J400-35
J400-20
J400-6
J400-37
E403
J400-36
J400-18
C463
100pF
E401
J400-4
J400-8
J400-32
E400
C467
0.1uF
1000pF
C4021
C458
100pF
J400-40
R482
0
E408
J400-24
J400-2
J400-27
J400-15
0.1uF
C481
E409
J400-3
J400-9
J400-30
J400-1
J400-5
J400-22
E404
J400-19
J400-38
J400-33
J400-39
J400-31
J400-21
C459
100pF
J400-14
J400-7
J400-13
KEYPAD_ROW
KEYPAD_COL
J400-25
D2
D1
D0
Vddd
LCD_SEL
LEDBL
KEY_INT
INT_EXT_Vdd
VS_INT
VS_AUDSEL
VS_GAINSEL
MISO
VS_RAC
D7
D4
D5
D3
D6
FLAT_RX_SND
RX_AUD_RTN
URX_SND
TX_AUD_SND
PTT
SWB+
A0
R_W
RESET
OFF_BATT_DATA_OUT
OPT_ENA
DATA
RDY
FLAT_TX_RTN
TX_AUD_RTN
VS_CS
EXT_MIC
CLK
Figure 5-18. 200 MHz Keypad/PassPort Board Interface Schematic Diagram