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TDA18271HD_09 데이터시트(Datasheet) 57 Page - NXP Semiconductors

부품명 TDA18271HD_09
상세내용  Silicon Tuner IC
PDF  70 Pages
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제조사  NXP [NXP Semiconductors]
홈페이지  http://www.nxp.com
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TDA18271HD_4
© NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 19 May 2009
57 of 70
NXP Semiconductors
TDA18271HD
Silicon Tuner IC
13. Characteristics
All data in this section refers to Master mode operation
[1]
Channel loading assumptions: 129 channels (NTSC 129 frequency plan) at 75 dB
µV.
Table 58.
Loop-through characteristics (RF input to loop-through output)
Tamb = 25 °C; VCC = 3.3 V; for test circuit see Figure 27; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fRF(lt)
loop-through RF
frequency
center of channel
45
-
864
MHz
VSWR
voltage standing
wave ratio
loop-through output; 75
nominal impedance
--3
Gv(lt)
loop-through
voltage gain
75
Ω load
-
1.5
-
dB
∆Glt
loop-through gain
variation
in the RF frequency range;
75
Ω load
-3
-dB
NFlt
loop-through noise
figure
Standby mode with LT, STO
and crystal oscillator on
-
6.5
-
dB
CSO
composite
second-order
distortion
[1] -
−60
-
dBc
CTB
composite triple
beat
[1] -
−63
-
dBc
αisol(bp)
bypass isolation
from loop-through output to
RF input
-24
-
dB
VL(tun-lto)
leakage voltage
between tuner and
loop-through output
in RF TV band
-
5
-
dB
µV
Table 59.
Slave tuner output characteristics (pin STO)
Tamb = 25 °C; VCC = 3.3 V; for test circuit see Figure 27; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fRF(STO)
RF frequency on
pin STO
slave tuner output
45
-
864
MHz
Zo(STO)
output impedance
on pin STO
30
35
40
Gv(STO)
voltage gain on pin
STO
75
Ω source resistance on
RF input; Zi =35 Ω (75 Ω,
VSWR = 2)
POWER_LEVEL[6:5] = 00
-
6
-
dB
POWER_LEVEL[6:5] = 01
-
9
-
dB
POWER_LEVEL[6:5] = 10
-
12
-
dB
POWER_LEVEL[6:5] = 11
-
15
-
dB




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