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參數(shù)資料
| 型號(hào)： | SL5162KGMP1T |
| 廠商： | Zarlink Semiconductor Inc. |
| 英文描述： | Multistandard VHF and UHF Television Demodulator |
| 中文描述： | 多標(biāo)準(zhǔn)高頻和超高頻電視解調(diào)器 |
| 文件頁數(shù)： | 4/10頁 |
| 文件大?。?/td> | 339K |
| 代理商： | SL5162KGMP1T |
3
SL5162
ELECTRICAL CHARACTERISTICS (continued)
Characteristic
Typ.
Conditions
2
10
2
10
2
60
2
46
38·9
2
16
2
15
2
22
2
3
500
30
2
70
2
70
2
70
2
75
2
70
2
70
860
0·2
Units
Min.
Max.
dBC
dBC
dBC
k
mVp-p
dBC
dBC
dBC
dBC
dBC
dBC
dBC
dBC
dBC
dBC
MHz
kHz
Relative to PVC (note 4)
Relative to PVC, with no audio modulation applied
Relative to PVC
Single ended from 50
Values referred to PAL system G carrier level
Note 5
Relative to 83dB
μ
V modulated carrier (note 6)
With 1Vp-p video input signal colour bars
Pin
Value
18
1, 2
4,5,6,7
Mod Index Control
Sound subcarrier level,
negative video modulation
Sound subcarrier level,
positive video modulation
Second sound subcarrier
Video Test Sig. Generator
Negative impedance
Ceramic resonator impedance
Prescaler
Output amplitude
Distortions
Intermodulation:
f
V
1
(f
S
2
f
C
)
f
V
1
2f
C
f
V
1
2f
S
f
V
1
3f
S
Spurious (in band)
Spurious (ex band)
Harmonics:
2f
V
3f
V
Sound in vision
Vision in sound
Local Oscillator
Frequency range
Residual FM
1
2
3
4
5
6
7
8
9
1o
11
12
13
14
15
16
17
18
19
20
UHF prescaler output 1
UHF prescaler output 2
Positive supply for UHF circuits
UHF tank
UHF tank
UHF tank
UHF tank
UHF ground
Sound tank 1
Sound tank 2
Audio 1 input
Positive supply for baseband circuits
Intercarrier (sound) input
Video modulation/standard select
75
modulated output
75
modulated output
Baseband ground
Test signal generator input
Video input
AGC capacitor/disable switch
RF 1
RF 2
V
CC
2
LOIN 1
LOOP 1
LOOP 2
LOIN 2
V
EE
2
ST 1
ST2
AUDIO
V
CC
1
SUB 2
MSS
OP 1
OP2
V
EE
1
TSG
VID
AGC
Pin
Name
Function
NOTES
5. f
= vision carrier, f
= sound subcarrier, f
= chroma subcarrier.
6. SUB 2 must be connected to V
CC
to achieve this performance.
Table 1 Pin descriptions
VIDEO INPUT SECTION
A composite signal of the selected standard is applied to
the device via a coupling capacitor also acting as the clamp
storage capacitor. A minimum level clamp is used to DC
restore the video signal in the IC to an internally defined
reference voltage.
The AGC will give a constant output level with input signals
between 0·5 and 1·5 Vp-p. If a controlled 1Vp-p video signal
is available, the AGC may be disabled, in which case a white
clip circuit is switched in, to prevent possible overmodulation.
Selection of negative or positive modulation is via a single
pin (14). The voltage on this pin controls an offset which is fed
to the UHF mixer, thus determining both modulation depth,
and sense of modulation.
SOUND SECTION
The sound is AC coupled and AM or FM modulated onto
the pre-selected carrier, 4·5 - 6·5MHz; its level is nominally at
2
16dB relative to the peak vision carrier.
UHF MODULATED OUTPUT
Modulation and relative levels of vision and sound carrier
levels are preset for the selected broadcast standard.
Table 2 gives the output options available. Modulation index
is fixed at 83% for all negative modulation systems and at 94%
for SECAM standard L. Selection of sound tank frequency is
defined by off-chip tank components.
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