TDA6502 Datasheet, PDF (6/44 Pages) NXP Semiconductors – 5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners

Philips Semiconductors
5 V mixers/oscillators and synthesizers for
cable TV and VCR 2-band tuners
6 BLOCK DIAGRAM
Preliminary specification
TDA6502; TDA6502A;
TDA6503; TDA6503A
handbook, full pagewidth
3 (26)
VHFIN
BS
4 (25)
RFGND
UHFIN1
UHFIN2
1 (28)
2 (27)
BS
IFFIL1 IFFIL2
5 (24) 6 (23)
RF INPUT
VHF
BS
TDA6502
TDA6502A
(TDA6503)
(TDA6503A)
RF INPUT
UHF
BS
VHF
MIXER
UHF
MIXER
VCC
19 (10)
BS
BS
VHF
OSCILLATOR
IF
PREAMPLIFIER
(5) 24
VHFOSCOC
(7) 22
(6) 23
(9) 20
VHFOSCIB
OSCGND
IFOUT
UHF
OSCILLATOR
(1) 28
(2) 27
(3) 26
(4) 25
UHFOSCIB2
UHFOSCOC2
UHFOSCOC1
UHFOSCIB1
18 (11)
XTAL
14 (15)
CL
13 (16)
DA
11 (18)
SW
12 (17)
CE/AS
XTAL
OSCILLATOR
4 MHz
POWER-DOWN
DETECTOR
REFERENCE
DIVIDER
64, 80, 128
RSA
RSB
15-BIT
PROGRAMMABLE
DIVIDER
15-BIT
FREQUENCY
FL
REGISTER
fREF
PHASE
COMPARATOR
CHARGE
PUMP
fDIV
IN-LOCK
DETECTOR
T0, T1, T2 CP
OPAMP
OS
FL
CONTROL
REGISTER
(13) 16
CP
(12) 17
VT
SCL
SDA
SW
I²C-bus / 3-WIRE BUS
TRANSCEIVER
CE/AS
3-BIT ADC
fREF
FL
1/2fDIV
GATE
CP T2 T1 T0 RSA RSB OS
PORT
REGISTER
UHF VHFH VHFL FMST
BS
T0, T1, T2
(8) 21
15 (14)
LOCK/ADC
9 (20) 8 (21) 7 (22) 10 (19)
PVHFH
FMST
PUHF
PVHFL
FCE527
GND
The pin numbers in parenthesis represent the TDA6503 and TDA6503A.
Fig.1 Block diagram.
2000 Mar 16
6