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May 29, 2001
Confidential and Proprietary Information of BTI
Page 4
850-950MHz RF TRANSCEIVER
BT1074Bi
21
VDD_UPC
-
Power supply to TX upconverters
6
VDDPA_GR
-
Power supply to guard ring
19/20
VDD_PRE1-2
-
Power supply to pre-amplifier
31
VDD_TXIF
-
Power supply to transmitter
40
VDDIF_VCO
-
Power supply to IF VCO
41
VDDRF_VCO
-
Power supply to RF VCO
47
VDDRFVCOIN
-
Power supply to RF VCO input stage
50
VDDRX_BUF
-
Power supply to receiver IF buffer
3
GNDLNA
-
Ground to LNA
61/62
GND_DMX1-2
-
Ground to downconverters
56
GND_IF
-
Ground to RX differential-to-single buffers
34
GND_IFVCOIN
-
Ground to IF VCO first stage
22/23
GND_UPC1-2
-
Ground to TX upconverters
13/15/18
GND_PRE1-3
-
Ground to pre-amplifier
7/9/11
GND_PA1-3
-
Ground to power amplifier
26/27
GND_TXIF1-2
-
Ground to transmitter
5
GNDLNA1P
-
Ground to RX LNA differential first stage
1
GNDLNA1N
-
Ground to RX LNA differential first stage
37
GNDIFBUF
-
Ground to IF VCO buffer
39
GNDIF_VCO
-
Ground to IF VCO
42
GNDRF_VCO
-
Ground to RF VCO
44
GNDRFVCOIN
-
Ground to RF VCO input stage
53
GNDRX_BUF
-
Ground to receiver IF buffer
33
IF_VCO_GND
-
Ground to IF VCO buffer
Local Oscillator Pins
38
IF_VCO_OUT
O
IF VCO output
36
IFCAPIN
I
IF VCO feedback capacitors input
35
IF_VCO_CTRL
I
IF VCO control input
43
RF_VCO_OUT
O
RF VCO output
45
RF_VCO_CTRL
I
RF VCO control input
46
RFVCOCAPIN
I
RF VCO resistor bias input
Transmitter Pins
8
RF_OUTN
O
Power amplifier output
10
RF_OUTP
O
Power amplifier output
24
TX_P_CNT
I
Transmission output power control: Hi - low power mode
Low - high power mode
12
REXT2
I
Bias for power amplifier
14
REXT1
I
Bias for power amplifier
Pin
Parameter
I/O
Description
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