zap_diagrams.pdf

(170 KB) Pobierz
MAIN
VCO
ANT
RF
SWITCH
FL400
Q410
LOW
NOISE
AMP.
FL461
Q460
MIXER
FL480
GCAP
U900
SMOC
U500
GIF_SYN_5.2
U220
Q480
ISOLATION
AMPLIFIER
SPEAKER
ZAP RECEIVER BLOCK DIAGRAM (GSM)
Motorola Internal Use Only
Aux RF
TX_EN
RX_EN
V2
V1
ANT
AUX
ANTENNA
TX
YES
LOW
HIGH
+3V
-7V
RX
YES
HIGH
LOW
-7V
+3V
TX
U401
V2
VI
NO
LOW
HIGH
-7V
+3V
RX
NO
HIGH
LOW
+3V
-7V
TX
RX
AUX RF
ZAP T/R SWITCH COMBINATIONS
LOW
NOISE
AMP
SIGNAL
FROM
RF SWITCH
FL400
Q410
FL461
FL461
IF
MIXER.
Q460
MAIN VCO
RF SWITCH TO RECEIVER FRONT END BLOCK DIAGRAM (GSM)
SIGNALS
FROM LNA
& VCO.
MIXER
SAW
FL480
ISOLATE
AMP
Q480
Q460
TO GIF_SYN
RX_EN
MUTE = 0V
PIN 31 (U220)
BLOCK DIAGRAM OUTPUT OF LNA TO GIF_SYN (GSM).
FROM
ISOLATE
AMP
Q480
LOCAL
OSCILLATOR
430
MHz
153 MHz
42
31
43
46
48
RXI
RXQ
GIF_SYN (U220)
22 23
SMOC
U500
BLOCK DIAGRAM ISOLATE AMP TO SMOC (GSM).

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika:

Zgłoś jeśli naruszono regulamin