900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




NXP Semiconductors Electronic Components Datasheet

TDA8044 Datasheet

Satellite demodulator and decoder

No Preview Available !

INTEGRATED CIRCUITS
DATA SHEET
TDA8044
Satellite demodulator and decoder
Product specification
Supersedes data of 1998 Nov 17
File under Integrated Circuits, IC02
2000 Feb 21


NXP Semiconductors Electronic Components Datasheet

TDA8044 Datasheet

Satellite demodulator and decoder

No Preview Available !

Philips Semiconductors
Satellite demodulator and decoder
Product specification
TDA8044
FEATURES
General features:
– One-chip Digital Video Broadcasting (DVB)
compliant Quadrature Phase Shift Keying (QPSK)
and Binary Phase Shift Keying (BPSK) demodulator
and concatenated Viterbi/Reed-Solomon decoder
with de-interleaver and de-randomizer
(ETS 300 421)
– 3.3 V supply voltage (input pads are 5 V tolerant)
– Standby mode for low power dissipation
– Internal clock PLL to allow low frequency crystal
application and selectable clock frequencies
– Power-on reset module
– Package: QFP100
– Boundary scan test.
QPSK/BPSK demodulator:
– Interpolator and anti-alias filter to handle a large
range of symbol rates without additional external
filtering
– On-chip AGC of the analog input I and Q baseband
signals or tuner AGC control
– Two on-chip matched Analog-to-Digital Converters
(ADCs; 7 bits)
– Half Nyquist (square root raised-cosine) filter with
selectable roll-off factor
– Large range of symbol frequencies:
0.5 to 45 Msymbols/s for TDA8044 and
0.5 to 30 Msymbols/s for TDA8044A, including
Single Carrier Per Channel (SCPC) function
– Can be used at low channel Signal-to-Noise ratio
(S/N)
– Internal carrier recovery, clock recovery and AGC
loops with programmable loop filters
– Two loop carrier recovery enabling phase tracking of
the incoming symbols
– Software carrier sweep for low symbol rate
applications
– Signal-to-noise ratio estimation
– External indication of demodulator lock.
Viterbi decoder:
– Rate 12 convolutional code based
– Constraint length K = 7 with G1 = 171oct and
G2 = 133oct; supported puncturing code rates:
12, 23, 34, 45, 56, 67, 78 and 89
– 4 bits input for ‘soft decision’ for both I and Q
– Truncation length: 144
– Automatic synchronization
– Channel Bit Error Rate (BER) estimation
– External indication of Viterbi sync lock
– Differential decoding optional.
Reed-Solomon (RS) decoder:
– (204, 188, T = 8) Reed-Solomon code
– Automatic (I2C-bus configurable) synchronization of
bytes, transport packets and frames
– Internal convolutional de-interleaving (I = 12; using
internal memory)
– De-randomizer based on Pseudo Random Bit
Sequence (PRBS)
– External indication of Register Select (RS) decoder
sync lock
– External indication of uncorrectable error (transport
error indicator is set)
– External indication of corrected byte
– Indication of the number of lost blocks
– Indication of the number of corrected blocks.
Interface:
– I2C-bus interface to initialize and monitor the
demodulator and Forward Error Correction (FEC)
decoder; when no I2C-bus usage, default mode is
defined
– Programmable interrupt facility
– 6 bits I/O expander for flexible access to and from the
I2C-bus
– Switchable I2C-bus loop-through to suppress I2C-bus
crosstalk in the tuner
– DiSEqC level 1.X support for dish control applications
– 3-state mode for transport stream outputs.
APPLICATIONS
Digital satellite TV: demodulation and Forward Error
Correction (FEC).
2000 Feb 21
2


Part Number TDA8044
Description Satellite demodulator and decoder
Maker NXP
Total Page 20 Pages
PDF Download

TDA8044 Datasheet PDF

View PDF for Mobile








Similar Datasheet

1 TDA8040T Quadrature demodulator
NXP
2 TDA8041H Quadrature demodulator controller
NXP
3 TDA8042M Quadrature demodulator
NXP
4 TDA8043 Satellite Demodulator and Decoder SDD
NXP
5 TDA8044 Satellite demodulator and decoder
NXP
6 TDA8046 Multi-mode QAM demodulator
NXP





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy