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