Figure 4.1: Transmitter Block Diagram
External RF
Connector
TIF
Filter
PMB2333
PMB2333
TIF
Filter
PA
PA
mech
switch
GSM
PCN
2
3
9
11
12
11
12
9
PCN_PRE_ON
GSM_PRE_ON
16
16
(IC101)
(IC102)
(FL104)
(FL105)
TXP_MOD
V_ERROR
TXP_MOD
V_ERROR
GSM_PRE_ON
PCN_PRE_ON
(FL106)
(IC107)
(IC106)
(IC103)
6
2
15
15
2
6
BPF
BPF
(IC104)
3V_G_TX
7
3V_P_TX
7
Diplexor
GND
GND
3V_P_TX
3V_G_TX
TR106
TR107
From UHF VCO
TX_LO_IF
TA= -37dbm
TIPI
TINI
TQPI
TQNI
1,16,20
9
(IC100)
2v85_rf3
4
5
6
7
T1 = -28dbm
TB = -35dbm
T2 = -40dbm
T3 = -14dbm
TB = -15dbm
TD = -18dbm
TE = -31dbm
TF = -24dbm
TG = -7dbm
TI = -24dbm
TH = -16dbm
TJ = -12dbm
TK = -1dbm
TL = -2dbm
TM = -2dbm
TN = +12dbm
T4 = -23dbm
T5 =-27dbm
T6 = -38dbm
T7 = -18dbm
T9 = -23dbm
T8 = -23dbm
T12 = -6dbm
T13 = -4dbm
T14 = -10dbm
T15 = +4dbm
T10 = -14dbm
T11 = -16dbm
DB2000 Transmitter RF Levels
GSM = TA - TN @ Pwr Lvl 10
PCN = T1 - T15 @ Pwr Lvl 7
Содержание DB2000
Страница 1: ...DB2000 Service Manual Help ...
Страница 3: ... ...
Страница 4: ...Important One incorrect adjustment may result in the need for many more and result in extra 0 1 2 2 ...
Страница 5: ... 2 3 4 2 2 2 2 2 0 0 0 5 3 4 2 6 2 7 2 2 2 2 0 8 9 2 2 2 2 2 2 2 2 ...
Страница 7: ... 2 6 2 2 2 2 2 3 4 2 2 0 2 ...
Страница 8: ... 2 ...
Страница 9: ... Previous Section Next Section Main Menu Section 2 Unit Specifications ...
Страница 77: ... 1 2 ...
Страница 83: ...Fit Antenna INSERT AND SCREW THE ANTENNA INTO THE ASSEMBLY ...
Страница 106: ...Part 5 Test Signals Fig 3 4 V_G_LNA Pg 3 5I TP300 Fig 3 5 V_P_LNA Pg 3 5J TP301 Fig 3 6 RX_ON2 Pg 3 16G TP405 ...
Страница 107: ...Fig 3 7 GSM_LNA Pg 3 3I TP419 Fig 3 8 PCN_LNA Pg 3 3J TP420 Fig 4 9 TCXO Pg 2 H11 TP413 ...
Страница 108: ...Fig 4 0 GSM Rx I Q s Pg 3 E F15TP406 7 Fig 4 1 PCN Rx I Q Pg 3 E F15 TP406 7 Fig 4 2 GSM_TX Pg 1 1I TP403 ...
Страница 109: ...Fig 4 3 PCN_TX Pg 1 1J TP417 Fig 4 4 3V_G_TX Pg 1 4I TP100 Fig 4 5 3V_P_TX Pg 1 4J TP101 ...
Страница 110: ...Fig 4 6 GSM_ON Pg 1 2K TP402 Fig 4 7 PCN_ON Pg 1 1K TP415 Fig 4 8 PRE_ON Pg 1 4J TP416 ...
Страница 112: ... I Q ...
Страница 113: ...Fig 4 14 V_ERROR PCN Pwr Lvl 7Pg 1 16I Fig 4 15 300khz Charge Pump Pg 1 Log 9G ...
Страница 115: ... Previous Section Next Section Main Menu Section 6 Device Device Information Information ...
Страница 144: ...M5 TV0501 2SC4180 T1 NPN TRANSISTOR TR200 TR204 Emitter Base Collector Surface Mount NPN Epitaxial Planar Transistor ...
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Страница 190: ... Previous Section Next Section Main Menu Glossary of Terms ...