TDA8261TW Philips Semiconductors, TDA8261TW Datasheet - Page 5

• Manufacturer Part Number: TDA8261TW
• Description: Satellite Zero-IF QPSK/8PSK downconverter with PLL synthesizer
• Manufacturer: Philips Semiconductors

Philips Semiconductors
PINNING
2004 Dec 02
XT1
XT2
V
PLLGND
AGCIN
BIASN1
RFGND1
V
RFA
RFB
RFGND2
QOUT
BBGND1
QBBIN
V
QBBOUT
IBBOUT
BIASN2
IBBIN
BBGND2
IOUT
VCOGND
TKB
TKA
V
BVS
VT
CP
AS
SCL
SDA
XTOUT
SYMBOL
CC(PLL)
CC(RF)
CC(BB)
CC(VCO)
Satellite Zero-IF QPSK/8PSK
downconverter with PLL synthesizer
PIN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
4 MHz crystal oscillator input 1
4 MHz crystal oscillator input 2
supply voltage for PLL circuit (5 V)
ground for PLL circuit
AGC input from satellite
demodulator and decoder
RF isolation input 1 (5 V)
ground 1 for RF circuit
supply voltage for RF stage (5 V)
RF signal input A
RF signal input B
ground 2 for RF circuit
quadrature output for external
filtering
ground 1 for baseband stage
quadrature baseband input after
external filtering
supply voltage for baseband stage
(5 V)
quadrature baseband output to
satellite demodulator and decoder
in-phase baseband output to
satellite demodulator and decoder
RF isolation input 2 (5 V)
in-phase baseband input after
external filtering
ground 2 for baseband stage
in-phase output for external filtering
ground for VCO circuit
VCO tank circuit input B
VCO tank circuit input A
supply voltage for VCO circuit (5 V)
bus voltage select input
tuning voltage output for VCO
charge pump output
address selection input
I
I
4 MHz crystal oscillator output to
satellite demodulator and decoder
2
2
C-bus clock input
C-bus data input and output
DESCRIPTION
5
handbook, halfpage
V CC(PLL)
QBBOUT
RFGND1
V CC(RF)
RFGND2
BBGND1
V CC(BB)
PLLGND
BIASN1
AGCIN
QBBIN
QOUT
RFA
RFB
XT1
XT2
Fig.2 Pin configuration.
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
TDA8261TW
MBL855
TDA8261TW
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
Product specification
XTOUT
SDA
SCL
AS
CP
VT
BVS
V CC(VCO)
TKA
TKB
VCOGND
IOUT
BBGND2
IBBIN
BIASN2
IBBOUT