TRF3040 Datasheet, PDF (3/40 Pages) Texas Instruments – MODULATOR/SYNTHESIZER

TRF3040
MODULATOR/SYNTHESIZER
SLWS057 – AUGUST 1999
functional block diagram
TANK+
TANK–
PHSOUT
IPEAK
TXLO –
TXLO +
8
7
Transmit Intermediate
Frequency Synthesizer
TXLO_Buffer
TXIF_VCO
12
TXIF_
13 _VCO
Buffer
TXIF
TXIF_Buffer
+ 90
+
Σ
BPF
+ 90 ₊
TXIF
10 _Phase
Detector
11 and
Charge
Pump
N
(N = 6, 7, 8, 9)
SSBSC Converter and TXIF Buffer
QQ
26
25
+ 90
+
Σ
+
DUALTX
VGA
20
TXRF
22
PA Driver
DUALTX+
DUALTX–
I/Q Modulator
28
–
I
27
I
XTAL +
XTAL ^–
TXIF_LD
37
XTAL INR
36 ^OSC
Control Logic
35 _TXEN
34 _DATA
33 _CLOCK
31
STROBE
+3
RXLO _{– 4}
RXLO Buffer
MCLK
38
MCLK Buffer
Main
Prescaler
÷ 32/33
Main Divider
Main Phase
Detector
1
PHP
48
PHI
RCLK
39
RCLK Buffer
Reference
Divider Buffer
Reference
Divider
Auxiliary
Phase Detector
TXIF_LD
Lock
Detect
32
LOCK
41
PHA
43
INA
Auxiliary Synthesizer
Input Buffer
Main
Prescaler
÷ 8/9
Auxiliary
Divider
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