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TDA8051 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - QPSK receiver - NXP

भाग संख्या TDA8051
समारोह QPSK receiver
मैन्युफैक्चरर्स NXP 
लोगो NXP लोगो 
पूर्व दर्शन
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TDA8051 pdf
Philips Semiconductors
QPSK receiver
Product specification
TDA8051
FEATURES
High operating input sensitivity
Gain controlled amplifier
PLL controlled carrier frequency
Low crosstalk between I and Q channel outputs
3-wire transmission bus
5 V supply voltage.
APPLICATIONS
BPSK/QPSK demodulation.
GENERAL DESCRIPTION
This TDA8051 is a monolithic bipolar IC intended for
Quadrature Phase Shift Key (QPSK) demodulation. It
includes:
Low noise RF and gain controlled amplifier
Two matched mixers
Symmetrical Voltage Controlled Oscillator (VCO) with
0 to 90° signal generator whose frequency is controlled
by an integrated Phase Lock Loop (PLL) circuit.
Two matched amplifiers for output base-band active
filtering and output buffers
The gain control is produced by output level detection
compared with an external pre-fixed reference. The PLL
consists of:
Divide by four preamplifier
12-bit programmable main divider
Crystal oscillator with 8-bit programmable reference
divider
Phase/frequency detector combined with charge pump
to drive tuning amplifier
30 V output
QUICK REFERENCE DATA
All AC units are RMS values unless otherwise specified.
SYMBOL
VCC
fI(LNA)
VI(LNA)
∆ΦI-Q
GI-Q
αCT(I-Q)
IM3
Vo
fstep
fxtal
Tamb
PARAMETER
supply voltage range
input carrier frequency at LNA input
input level at LNA input
phase error between I and Q channels
gain error between I and Q channels
crosstalk between I and Q channels
3rd-order intermodulation distortion in
I and Q channels (0 dBmV at LNA_IN)
voltage output on pin I_OUT and Q_OUT
step at output
crystal frequency
operating ambient temperature
MIN.
4.75
44
30
TYP.
5.00
±3
±1
30
MAX.
5.25
130
0
45
UNIT
V
MHz
dBmV
deg
dB
dBc
dBc
48 dBmV
50
250 kHz
1 4 MHz
0 70 °C
ORDERING INFORMATION
TYPE NUMBER
TDA8751T
NAME
SO32
PACKAGE
DESCRIPTION
plastic small outline package; 32 leads; body width 7.5 mm
VERSION
SOT287-1
1999 Aug 20
2

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डाउनलोड[ TDA8051 Datasheet.PDF ]


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