TDA18271HD_09 Datasheet, PDF (59/70 Pages) NXP Semiconductors – Silicon Tuner IC

NXP Semiconductors
TDA18271HD
Silicon Tuner IC
Table 60. General characteristics for TV reception (RF input to IF output) …continued
T_amb = 25 °C; V_CC = 3.3 V; IF output level option 2 V (p-p); IF output load = 1 kΩ on each terminal;
for test circuit see Figure 27; unless otherwise specified.
Symbol Parameter
Conditions
Min Typ Max Unit
f_IF(stpb)lp
low-pass
stop-band IF
frequency
60 dB attenuation
6 MHz IF filter
7 MHz IF filter
- 14 -
- 16 -
MHz
MHz
8 MHz IF filter
- 18 -
MHz
α_image
t_d(grp)
image rejection
group delay time analog TV; difference between
f1 and f2 in IF
- 65 -
dB
Std B; f1 = 1.57 MHz;
f2 = 6 MHz
- 130 -
ns
Std G; f1 = 2.67 MHz;
f2 = 7.1 MHz
- 36 -
ns
Std M/N; f1 = 1.82 MHz;
f2 = 5.4 MHz
- 92 -
ns
t_ripple
ripple time
digital TV; difference between f1
and f2 in digital channel
ATSC 6 MHz; f1 = 0.75 MHz;
- 395 -
ns
f2 = 5.75 MHz
DVB-T 6 MHz; f1 = 0.8 MHz
and f2 = 5.8 MHz
- 365 -
ns
DVB-T 7 MHz; f1 = 0.5 MHz
and f2 = 6.5 MHz
- 478 -
ns
DVB-T 8 MHz; f1 = 0.5 MHz
and f2 = 7.5 MHz
- 515 -
ns
QAM 6 MHz; f1 = 1.5 MHz
and f2 = 6.5 MHz
- 155 -
ns
QAM 8 MHz; f1 = 1.5 MHz
and f2 = 8.5 MHz
- 180 -
ns
ϕ_n
Various
phase noise
1 kHz and 10 kHz; see Figure 23 - −89 -
dBc/Hz
t_startup(tun) tuner start-up
time
at power-up
- 1.5 -
s
t_set
setting time
channel change
S_dig
digital sensitivity DVB-T (64 QAM ²â„₃);
BER = 2.10^−4
- 20 -
[1] _-
−82 -
ms
dBm
S_a
analog
50 dB video SNR weighted
[2] _-
58 -
dBµV
sensitivity
22 dBµV (color loss)
[1] Measured with TDA10048HN channel decoder.
[2] Measured with TDA8295 IF modulator.
TDA18271HD_4
Product data sheet
Rev. 04 — 19 May 2009
© NXP B.V. 2009. All rights reserved.
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