tda6503a NXP Semiconductors, tda6503a Datasheet - Page 6

• Manufacturer Part Number: tda6503a
• Description: 5 V Mixers/oscillators And Synthesizers For Cable Tv And Vcr 2-band Tuners
• Manufacturer: NXP Semiconductors

Philips Semiconductors
6
2001 Aug 22
handbook, full pagewidth
RFGND
UHFIN2
UHFIN1
5 V mixers/oscillators and synthesizers for
cable TV and VCR 2-band tuners
CE/AS
VHFIN
The pin numbers in parenthesis refer to the TDA6503 and TDA6503A.
XTAL
BLOCK DIAGRAM
SW
DA
CL
1 (28)
18 (11)
14 (15)
13 (16)
11 (18)
12 (17)
3 (26)
4 (25)
2 (27)
BS
BS
SCL
SDA
SW
POWER-DOWN
OSCILLATOR
(TDA6503A)
TDA6502A
(TDA6503)
DETECTOR
RF INPUT
RF INPUT
TDA6502
4 MHz
XTAL
VHF
UHF
CE/AS
I
2
C-BUS / 3-WIRE BUS
TRANSCEIVER
3-BIT ADC
FL
IFFIL1 IFFIL2
RSA
5 (24)
PROGRAMMABLE
FREQUENCY
REFERENCE
64, 80, 128
REGISTER
DIVIDER
DIVIDER
15-BIT
15-BIT
6 (23)
BS
BS
Fig.1 Block diagram.
RSB
FL
LOCK/ADC
f REF
f DIV
MIXER
MIXER
GATE
VHF
UHF
f REF
COMPARATOR
DETECTOR
15 (14)
1/2f DIV
6
IN-LOCK
PHASE
FL
T0, T1, T2
T0, T1, T2 CP
BS
V CC
CP
CHARGE
19 (10)
PUHF
PUMP
UHF
BS
T2
BS
9 (20)
PVHFH
VHFH VHFL FMST
T1
REGISTER
REGISTER
CONTROL
8 (21)
PORT
TDA6502; TDA6502A;
T0 RSA RSB OS
PREAMPLIFIER
TDA6503; TDA6503A
OSCILLATOR
OSCILLATOR
PVHFL
OPAMP
7 (22)
VHF
UHF
OS
IF
FMST
10 (19)
(13) 16
(12) 17
Product specification
(5) 24
(7) 22
(6) 23
(9) 20
(1) 28
(2) 27
(3) 26
(8) 21
FCE527
(4) 25
IFOUT
UHFOSCIB2
UHFOSCOC2
UHFOSCOC1
UHFOSCIB1
VHFOSCOC
VHFOSCIB
OSCGND
CP
VT
GND