TDA8044 Datasheet, PDF (4/20 Pages) NXP Semiconductors – Satellite demodulator and decoder

Philips Semiconductors
Satellite demodulator and decoder
Product specification
TDA8044
QUICK REFERENCE DATA
SYMBOL
V_DDA
V_DDD
I_DD(tot)
f_clk
r_s
P_tot
IL
S/N
PARAMETER
analog supply voltage
digital supply voltage
total supply current
TDA8044
TDA8044A
internal clock frequency
TDA8044
TDA8044A
symbol rate
TDA8044
TDA8044A
total power dissipation
TDA8044
TDA8044A
implementation loss
signal-to-noise ratio for locking
the TDA8044
CONDITIONS
V_DDD = 3.3 V
note 1
notes 1 and 2
CFS = 0 or CFS = 1;
f_xtal = 4 MHz
note 1
notes 1 and 2
note 3
T_amb = 70 °C; note 4
note 5
note 5
MIN.
3.05
3.05
TYP.
3.3
3.3
MAX. UNIT
3.55 V
3.55 V
−
320 480 mA
−
−
350 mA
10.7 −
10.7 −
96
MHz
64
MHz
0.5 −
0.5 −
45
Msymbols/s
30
Msymbols/s
−
1150 1700 mW
−
−
1250 mW
−
0.3 −
dB
2
−
−
dB
Notes
1. Programmable internal frequencies possible:
a) Values 10.7, 16, 32 or 64 MHz for CFS = 0.
b) Values 16, 24, 48 or 96 MHz for CFS = 1.
2. CFS is set to logic 0.
3. Without switching internal clock frequencies, a range of 1 decade can be covered. To cover the full range of symbol
frequencies, internal clock frequencies and external (SAW) filters must be switched. Details can be found in the
application note.
4. Maximum value is specified for a symbol rate of 45 Msymbols/s, a puncturing rate of ⁷⁄₈, a clock frequency of 96 MHz
and a 3.55 V power supply. The typical value is specified for a symbol rate of 27.5 Msymbols/s, a puncture rate of ³â„₄
and a clock frequency of 64 MHz.
5. Implementation loss at the demodulator output and minimum S/N to lock the TDA8044 are measured including tuner
in a laboratory environment at a symbol rate of 27.5 Msymbols/s and a clock frequency of 64 MHz.
ORDERING INFORMATION
TYPE
NUMBER
TDA8044H
TDA8044AH
NAME
QFP100
PACKAGE
DESCRIPTION
plastic quad flat package; 100 leads (lead length 1.95 mm);
body 14 × 20 × 2.8 mm
VERSION
SOT317-2
2000 Feb 21
4