TDA6650TT; TDA6651TT
NXP Semiconductors
5 V mixer/oscillator and low noise PLL synthesizer
5. Block diagram
IFFIL1
IFFIL2
IFOUTA
IFOUTB
V
CCA
n.c.
21 (18)
26 (13)
6 (33)
7 (32) 28 (11)
27 (12)
(30) 9
AGC
IF
AGC
AMP
DETECTOR
TDA6650TT
AGC
flag
(TDA6651TT)
AL0, AL1, AL2 ATC
(10) 29
IFGND
(1) 38
(2) 37
LOSCIN
4 (35)
3 (36)
LOW
INPUT
LOW
MIXER
LOW
OSCILLATOR
LBIN
BS1
BS1
LOSCOUT
(5) 34
(4) 35
MOSCIN1
MOSCIN2
MID
INPUT
MID
MIXER
MID
OSCILLATOR
MBIN
BS2
BS2
(9) 30
(8) 31
(7) 32
(6) 33
1 (38)
2 (37)
HOSCIN1
HBIN1
HBIN2
HIGH
INPUT
HIGH
MIXER
HOSCOUT1
HOSCOUT2
HOSCIN2
HIGH
OSCILLATOR
BS1 . BS2
BS1 . BS2
5 (34)
(3) 36
RFGND
OSCGND
XTOUT
(21) 18
OUTPUT
BUFFER
R0, R1,
R2
24 (15)
[ ]
N 14:0
V
CCD
T0, T1, T2
PHASE
COMPARATOR
FRACTIONAL
DIVIDER
FRACTIONAL
CALCULATOR
(17) 22
(16) 23
LOOP
AMP
VT
CP
19 (20)
20 (19)
XTAL1
XTAL2
CHARGE
PUMP
CRYSTAL
OSCILLATOR
REFERENCE
DIVIDER
15 (24)
16 (23)
17 (22)
13 (26)
T0, T1, CP0, CP1,
SCL
SDA
AS
LOCK
DETECTOR
T2
CP2
2
I C-BUS
TRANSCEIVER
FRACTIONAL
SPURIOUS
COMPENSATION
BAND SWITCH
OUTPUT PORTS
BS5-
BS1
BVS
AGC
(14) 25
POR
ADC
14
8
10
11
12
PLLGND
(25) (31) (29) (28) (27)
fce723
ADC/
BS5
BS3
BS1
BS4
BS2
The pin numbers in parenthesis represent the TDA6651TT.
Fig 1. Block diagram
TDA6650TT_6651TT_5
© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 05 — 10 January 2007
4 of 54
NXP [ NXP ]
