tda6503a NXP Semiconductors, tda6503a Datasheet - Page 8

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

Philips Semiconductors
8
8.1
The device is controlled via the I
A LOW level on pin SW enables the I
(SDA) and serial clock (SCL) input respectively.
A HIGH level on pin SW enables the 3-wire bus: pins CE/AS, DA and CL are used as chip enable (CE), data and clock
inputs respectively.
Table 2 Bus format selection
2001 Aug 22
handbook, halfpage
SW
CE/AS
DA
CL
LOCK/ADC
SYMBOL
5 V mixers/oscillators and synthesizers for
cable TV and VCR 2-band tuners
Fig.2
FUNCTIONAL DESCRIPTION
Control mode selection
Pin configuration for TDA6502 and
TDA6502A.
UHFIN2
RFGND
UHFIN1
PVHFH
PVHFL
VHFIN
CE/AS
IFFIL1
IFFIL2
PUHF
FMST
TDA6502A
SW
TDA6502;
DA
CL
PIN
10
11
12
13
14
11
12
13
14
15
1
2
3
4
5
6
7
8
9
TDA6502A
TDA6502
FCE570
TDA6503A
TDA6503;
2
C-bus or the 3-wire bus, depending on the voltage applied to pin SW (see Table 2).
18
17
16
15
14
19
18
17
16
15
28
27
26
25
24
23
22
21
20
2
UHFOSCIB2
UHFOSCOC2
UHFOSCOC1
UHFOSCIB1
VHFOSCOC
OSCGND
VHFOSCIB
GND
IFOUT
V CC
XTAL
VT
CP
LOCK/ADC
C-bus: pins CE/AS, DA and CL are used as address selection (AS), serial data
LOW-level voltage or ground
address selection input
serial data input
serial clock input
ADC input or test output
I
2
C-BUS MODE
8
handbook, halfpage
Fig.3
UHFOSCOC2
UHFOSCOC1
UHFOSCIB2
UHFOSCIB1
VHFOSCOC
VHFOSCIB
LOCK/ADC
Pin configuration for TDA6503 and
TDA6503A.
OSCGND
IFOUT
XTAL
GND
V CC
CP
VT
HIGH-level voltage or open-circuit
enable input
data input
clock input
lock detector output or test output
10
11
12
13
14
1
2
3
4
5
6
7
8
9
TDA6502; TDA6502A;
TDA6503; TDA6503A
TDA6503A
TDA6503
3-WIRE BUS MODE
FCE571
19
18
17
16
15
28
27
26
25
24
23
22
21
20
Product specification
UHFIN1
UHFIN2
VHFIN
RFGND
IFFIL1
IFFIL2
PVHFL
PVHFH
PUHF
FMST
SW
CE/AS
DA
CL