TDA8295_09 Datasheet, PDF (3/83 Pages) NXP Semiconductors – Digital global standard low IF demodulator for analog TV and FM radio

NXP Semiconductors
TDA8295
Digital global standard low IF demodulator for analog TV and FM radio
4. Quick reference data
Table 1. Quick reference data
Power supplies 3.3 V, 1.2 V; T_amb = 25 °C; PC / SC1 for L and M = 10 dB, all others 13 dB; residual picture carrier for L = 3 %,
all others 10 %; FM/AM modulation = 54 %, 1 kHz modulation frequency; measured in application PCB (see Figure 15) with
16 MHz crystal frequency, loaded with 75 Ω (CVBS) and 1 kΩ (SSIF/audio). Values are meant for ‘easy programming’
settings (recommended) except internal mono audio and IF demodulation. The low IF spectrum is delivered by a professional
downconverter.
Symbol Parameter
Conditions
Min Typ
Max Unit
Power supply
V_DD(1V2)
V_DD(3V3)
I_DD(tot)(1V2)
I_DD(tot)(3V3)
P_tot
supply voltage (1.2 V)
digital and analog
supply voltage (3.3 V)
digital and analog
total supply current (1.2 V)
total supply current (3.3 V)
total power dissipation
default settings; 75 Ω drive;
f_s = 54 MHz at ADC; including DAC
loads; R_RSET = 1 kΩ
Power-save mode; f_s = 54 MHz at
ADC; including DAC loads;
R_RSET = 2 kΩ; see Section 13.6
Standby mode
1.08 1.2
2.97 3.3
-
28
[1] _-
168
[1] _-
575
[2] _-
465
-
7
1.32 V
3.63 V
33
mA
179 mA
631 mW
510 mW
10
mW
IF input
V_i(p-p)
V_i
peak-to-peak input voltage for full-scale ADC input (0 dBFS)
1.8 2.0
input voltage
operational input related to ADC full
−3
−3
scale; all standards; sum of all signals
2.2 V
−3
dBFS
f_i
input frequency
PC / SC1
M/N standard
-
5.75 / 1.25 -
MHz
B standard
-
6.75 / 1.25 -
MHz
G/H standard
-
7.75 / 2.25 -
MHz
I standard
-
7.75 / 1.75 -
MHz
DK and L standard
-
7.75 / 1.25 -
MHz
L-accent standard
-
1.25 / 7.75 -
MHz
FM radio
-
1.25
-
MHz
Carrier recovery FPLL
B_{−3dB(cl)}
closed-loop −3 dB
bandwidth
wide
60
60
60
kHz
Δf_pullin
pull-in frequency range see Figure 11
[3] _-
±830
-
kHz
m_over(PC)
picture carrier
overmodulation index
black for L/L-accent standard; flat field
white else
115 117
-
%
IF demodulation (video equalizer in Flat mode)
α_sup(stpb)
stop-band suppression
video low-pass filter (M/N, B/G/H, I,
D/K, L/L-accent standard)
-
−60
-
dB
t_ripple(GDE)
group delay equalizer
ripple time
peak value for B/G/H half, D/K half,
I flat, M (FCC) full, L/L-accent full
standard
-
20
40
ns
TDA8295_C2_2
Product data sheet
Rev. 02 — 27 November 2009
© NXP B.V. 2009. All rights reserved.
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