參數(shù)資料
型號(hào)： TA1372FNG
廠商： Toshiba Corporation
英文描述： VHF Band RF Modulator IC for VCRs and Set top boxes
中文描述： 甚高頻波段射頻調(diào)制器集成電路錄像機(jī)和機(jī)頂盒
文件頁數(shù)： 9/15頁
文件大?。?/td> 190K
代理商： TA1372FNG
TA1372FNG
2003-12-25
9
No.
Characteristics
Symbol
Min
Typ.
Max
Unit
Note
3-1-1
Picture to Sound ratio
RP/S
-18
-16
-14
dB
P/S ratio:
16dB set-up, Connecting a
16k ohm resistor between pin 10 and
GND. staircase (B/W) signal: 0.5-Vp-p
input
3-1-2
Picture to Sound ratio
(Difference of channel)
Δ
RP/S
-0.5
0
0.5
dB
P/S ratio:
16dB set-up, Connecting a
16k ohm resistor between pin 10 and
GND. staircase (B/W) signal: 0.5-Vp-p
input, RP/S (3ch) –RP/S (4ch)
3-2-1
Maximum P/S ratio
RP/S max
-11
-9
-
dB
P/S ratio: maximum set-up,
Pin 10 is open.
staircase (B/W) signal: 0.5-Vp-p input
3-2-2
Minimum P/S ratio
RP/S min
-
-18
-16
dB
P/S ratio: minimum set-up, Pin 10 is
connected to GND.
staircase (B/W) signal: 0.5-Vp-p input
3-3
Sound modulation sensitivity
β
FM
0.27
0.3
0.33
kHz/mV 1-kHz sine wave: 167 mVp-p input
β
FM
=
f (kHz)/ 167 (mV)
3-4-1
Sound S/N ratio 1
S/N(FM1)
51
52.5
-
dB
1-kHz sine wave input,
±2
5 kHz Dev.
=
0dB, Inter Carrier
demod., De-Emph
=
IN
3-4-2
Sound S/N ratio 2
(with video signal)
S/N(FM2)
50
51.5
-
dB
1-kHz sine wave input,
±2
5 kHz Dev.
=
0dB, Color bar signal:
0.5-Vp-p input, Inter Carrier demod.,
De-Emph
=
IN
3-5
Sound distortion
THD
-
0.3
0.5
%
1-kHz sine wave:
±
25kHz Dev.
3-6
Sound frequency response
fs
-2
0
2
dB
100 Hz~100 kHz, 1-kHz reference
3-7
Maximum FM deviation
Δ
Dev
400
450
-
%
1-kHz sine wave input, THD<3%
3-8-1
Sound RF 2nd harmonic
VSH1
-
-70
-65
dB
P/S ratio
=
16dB set-up,
Video carrier level reference
3-8-2
Sound RF 3rd harmonic
VSH2
-
-75
-70
dB
P/S ratio
=
16dB set-up,
Video carrier level reference
3-9-1
Sound carrier frequency
accuracy 1
Δ
fs4
-750
0
750
Hz
Reference frequency 4MHz, Internal
oscillation mode, Series capacitance of
crystal : 6 pF
Sound
Block
3-9-2
Sound carrier frequency
accuracy 2
Δ
fs358
-0.6
-
-
Hz
Reference frequency 3.579545MHz,
External signal input mode
4-1-1
Input voltage Low level for
channel selection
ViL1
0
-
1.7
V
Pin 8: Low:67.25MHz,
Open,High:61.25MHz
4-1-2
Input voltage High level for
channel selection
ViH1
2
-
Vcc
V
Pin 8
4-2-1
Input voltage Low level for
Carrier off mode selection
ViL2
0
-
1.7
V
Pin 6 Low,Open : Carrier off ,
Antenna SW Out Low
4-2-2
Input voltage High level for
Carrier off mode selection
ViH2
2
-
Vcc
V
Pin 6 High : Carrier on ,
Antenna SW Out High
4-3-1
Input voltage Low level for
reference signal mode
selection
ViL3
0
-
1.2
V
Pin 1 Low : Internal oscillation mode with
4MHz X'tal
4-3-2
Input voltage Middle level for
reference signal mode
selection
ViM3
1.8
2.5
3.2
V
Pin 1 Middle : 3.58MHz External signal
input mode
4-3-3
Input voltage High level for
reference signal mode
selection
ViH3
3.8
-
Vcc
V
Pin 1 Open,High : 4MHz External signal
input mode
4-4
Threshold voltage for
power-on reset
VRESET
2.5
2.8
3.1
V
4-5-1
Input voltage Low level for
Test mode selection
VIl4
0
-
1.2
V
Pin 5 Low : Normal mode
Logic
Block
4-5-2
Input voltage High level for
Test mode selection
ViH4
1.8
-
Vcc
V
Pin 5 High : Test mode
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