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TDA8050A डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - QPSK transmitter - NXP

भाग संख्या TDA8050A
समारोह QPSK transmitter
मैन्युफैक्चरर्स NXP 
लोगो NXP लोगो 
पूर्व दर्शन
1 Page
		
<?=TDA8050A?> डेटा पत्रक पीडीएफ

TDA8050A pdf
Philips Semiconductors
QPSK transmitter
Product specification
TDA8050A
FEATURES
Programmable gain
PLL controlled carrier frequency
3-wire transmission bus
5 V supply voltage.
APPLICATIONS
QPSK modulation.
GENERAL DESCRIPTION
The Quadrature Phase Shift Keying (QPSK) transmitter IC
is a monolithic bipolar IC dedicated to quadrature
modulation of the I and Q signals. It includes:
Two double balanced mixers
A balanced voltage controlled oscillator (VCO) with
0 to 90 degrees signal generation for modulation
A phase locked loop (PLL) for IF frequency control
A conversion mixer
A PLL for RF frequency control
A gain controlled output amplifier
A 3-wire bus and an output buffer.
Two PLLs are incorporated, the first PLL includes:
A fixed main divider
A crystal oscillator and its programmable reference
divider
A phase/frequency detector, combined with a fixed
charge pump.
The second PLL includes:
A divide-by-four preamplifier
A 12-bit programmable divider
A crystal oscillator and its programmable reference
divider
A phase/frequency detector, combined with a
programmable charge pump which drives the tuning
amplifier, including 30 V output.
QUICK REFERENCE DATA
SYMBOL
VCC
fc
Vo(max)
fxtal
fref(MOD)
fstep
Tamb
PARAMETER
supply voltage
output centre frequency
maximum output level
crystal frequency
reference frequency for modulator synthesizer
frequency step size for converter synthesizer
ambient temperature
MIN.
4.75
5
1
100
0
TYP.
5.00
55
250
MAX.
5.25
65
4
500
70
UNIT
V
MHz
dBmV
MHz
kHz
kHz
°C
ORDERING INFORMATION
TYPE
NUMBER
TDA8050A
NAME
SO32
PACKAGE
DESCRIPTION
plastic small outline package; 32 leads; body width 7.5 mm
VERSION
SOT287-1
1999 Nov 05
2

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डाउनलोड[ TDA8050A Datasheet.PDF ]


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