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參數(shù)資料
| 型號： | LA7337 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | SECAM-Format VCR Chroma Signal-Processing Circuit(SECAM格式VCR色度信號處理電路) |
| 中文描述： | SECAM制式格式錄像機色度信號處理電路（SECAM制式格式錄像機色度信號處理電路） |
| 文件頁數(shù)： | 3/7頁 |
| 文件大?。?/td> | 123K |
| 代理商： | LA7337 |
No. 5288-3/7
LA7337
Continued from preceding page.
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
V6 = 0 V, SW8B = on, SW14 = on,
V14 = V14R, S13 = sine wave
(50 mVp-p, f = 1 to 1.2 MHz), V16 = 5 V,
S27 = composite sync.
Playback equalization center frequency (1)
F
EQP1
1.0608
1.0715
1.0822
MHz
Playback equalization center frequency (2)
F
EQP2
As above, except V6 = 4 V
1.0788
1.0895
1.1002
MHz
V6 = 0 V, SW8B = on, SW14 = on,
V14 = V14R, S13 = sine wave
(50 mVp-p, f = FEQP1), V16 = 5 V,
S27 = composite sync.
Playback equalization characteristics (1)
V
EQPC
120
150
180
mVp-p
As above, except S13 = sine wave
(50 mVp-p, f = 950 kHz), taking V
EQP
as the
reference (0 dB).
Playback equalization characteristics (2)
G
EQPL
–14
–11
–8
dB
As above, except S13 = sine wave
(50 mVp-p, f = 1.2 MHz), taking V
EQP
as the
reference (0 dB).
Playback equalization characteristics (3)
G
EQPH
–14
–11
–8
dB
SW1 = on, V1 = 5 V, V5 = V6 = 0 V,
SW8A = SW8B = on, V16 = 5 V,
S27 = composite sync., S8 = sine wave
(200 mVp-p, f = 1 to 1.2 MHz),
Playback bell center frequency (1)
F
BLP1
4.243
4.286
4.329
MHz
Playback bell center frequency (2)
F
BLP2
As above, except V5 = 4 V
4.493
4.536
4.579
MHz
SW1 = on, V1 = 5 V, V5 = V6 = 0 V,
SW8A = SW8B = on, S8 = sine wave
(200 mVp-p, f = FBLP
×
1/4), V16 = 5 V,
S27 = composite sync.
Playback bell characteristics (1)
V
BLPC
65
85
105
mVp-p
As above, except S8 = sine wave
(200 mVp-p, f = 950 kHz), taking V
BLPC
as
the reference (0 dB).
Playback bell characteristics (2)
G
BLPL
8
11
14
dB
As above, except S8 = sine wave
(200 mVp-p, f = 1.2 MHz), taking V
BLPC
as
the reference (0 dB).
Playback bell characteristics (3)
G
BLPH
8
11
14
dB
SW1 = on, V1 = 5 V, V5 = V6 = 0 V, V16 = 5 V,
S13 = sine wave (200 mVp-p, f = 1.1 MHz),
SW8B = on, S27 = composite sync.
Playback chrominance signal output level
V
OP
130
160
190
mVp-p
Playback chrominance signal output
unnecessary spectrum (1)
As above, except measure the 2.2 MHz
component in the T17 signal. Taking V
OP
as
the reference (0 dB).
GSP1
–25
–15
dB
Playback chrominance signal output
unnecessary spectrum (2)
As above, except measure the 3.3 MHz
component in the T17 signal. Taking V
OP
as
the reference (0 dB).
GSP2
–20
–10
dB
CLK input level
V
CLK
V
THS
f = 4.433619 MHz
100
200
800
mVp-p
Synchronizing signal input threshold level
1.8
2
2.2
V
SW1 = on, V1 = 5 V, V5 = V6 = 0 V, V16 = 0 V,
S15 = sine wave (200 mVp-p, f = 4.286 MHz),
SW21B = on, S27 = composite sync.
Record mode sync gate start time (muting off)
T
RGB
–0.3
+0.2
+0.7
μs
Record mode sync gate start time (muting on)
T
RGBM
T
RGE
VTSP2
As above, except SW2 = on
1.5
2
2.5
μs
Record mode sync gate release time
As above
4.5
5.0
5.5
μs
k
Record mode mute setting resistance
10
20
30
SW1 = on, V5 = V6 = 0 V, SW8B = on,
S13 = sine wave (50 mVp-p, f = 1.0715 MHz),
V16 = 5 V, S27 = composite sync.
Playback mode sync gate start time
T
PGB
1.5
2
2.5
μs
Playback mode sync gate release time
T
PGE
As above
4.5
5.0
5.5
μs
BGP start time
T
BGB
V5 = 0 V, V6 = 5 V, SW21B = on, V16 = 0 V,
S27 = composite sync.
6.0
6.5
7.0
μs
BGP amplitude
T
BGW
R26
As above
2.0
2.5
3.0
μs
k
SECAM discriminator output resistance
SW25 = on, V25 = 5 V
7
10
13
Record mode SECAM discriminator
characteristics (1)
V5 = V6 = 0 V, V16 = 0 V, SW21B = on,
S27 = composite sync., S15 = SECAM color
bar signal
V
SCMR1
4.5
V
Record mode SECAM discriminator
characteristics (2)
V
SCMR2
As above, except S15 = PAL color bar signal
0.5
V
Continued on next page.
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