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參數(shù)資料
| 型號： | BA7664 |
| 廠商： | Rohm CO.,LTD. |
| 英文描述： | 75з driver with Y / C MIX circuit |
| 中文描述： | 75з司機與Y /葷混合電路 |
| 文件頁數(shù)： | 5/7頁 |
| 文件大小： | 79K |
| 代理商： | BA7664 |
5
Multimedia ICs
BA7664FV
Measurement circuit
2.1V
6dB
75
+
20k
1
2
3
4
8
7
6
5
MUTE
CHROMA MUTE
V
+
+
+
100
μ
22
μ
0.1
μ
V
02
V
01
47
μ
SW16
1
2
150
75
75
2.1V
0.8V
1
2
3
SW5
0.8V
1
2
1
2
3
2.5V
3
SW1
SW2
+
+
1
μ
F
1
μ
F
1
2
3
0.1
μ
F
0.1
μ
F
SW4
A
Fig.1
Measurement conditions
Parameter
Symbol
Measurement
method
SW Conditions
Circuit current
Max. output level
Voltage gain Y
→
OUT
C
→
OUT
Frequency characteristic
Muting attenuation
Chroma muting attenuation
Input impedance
Circuit current when muted
The muting switching level is substituted by carrying out the above measurement at H = 2.1V, L = 0.8V.
I
CC
V
OM
G
V1
G
V2
G
F
M
T
M
TC
Z
IN
I
MUTE
1
2
3
3
4
5
5
6
7
1
2
3
3
3
3
1
3
3
1
2
1
2
2
3
1
2
3
1
1
4
1
1
1
2
2
1
2
3
1
5
2
3
3
3
3
3
1
3
2
8
1
2
2
2
2
2
2
2
1
Measurement method
1 Measure the circuit current when no signal is present.
2 Apply a sine wave of f = 1kHz to the input, and adjust the input level so that the output distortion is 1%.
At this time, set the output voltage to the maximum output level of V
OM
[V
P-P
].
3 Measure the output V
O
[V
P-P
] with a sine wave of f = 4.43MHz, 1V
P-P
applied to the input.
Voltage gain G
V
is: G
V
= 20 Log (V
O
/ V
IN
) [dB]
4 Measure the outputs V
O7
and V
O1
[V
P-P
] each with sine waves of f = 7MHz, 1V
P-P
and f = 1MHz, 1V
P-P
applied to the input.
Voltage frequency G
F
is: G
F
= 20 Log (V
O7
/ V
O1
) [dB]
5 Measure the output V
O
[V
P-P
] with a sine wave of f = 4.43MHz, 1V
P-P
applied to the input.
The muting attenuation M
T
is: M
T
= 20 Log (V
O
/ V
IN
) [dB]
6 Measure the input voltage V
INSO
[V] and the open voltage of the input V
INO
[V] when 50
μ
A is introduced.
The input impedance Z
IN
is: Z
IN
= |V
INSO
– V
INO
| / 50
×
1000 [k
]
7 Measure the circuit current when MUTEA (pin 1) is HIGH.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| BA7664AFV | 制造商:ROHM 制造商全稱:Rohm 功能描述:1ch 75ohm driver for DVD (Y/C MIX Type) |
| BA7664AFV_09 | 制造商:ROHM 制造商全稱:Rohm 功能描述:Y/C MIX Circuit built-in Video Driver |
| BA7664AFV-E2 | 功能描述:視頻 IC VIDEO DRIVER 8PIN RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| BA7664FV | 制造商:ROHM 制造商全稱:Rohm 功能描述:75з driver with Y / C MIX circuit |
| BA7665AFS | 制造商:ROHM 制造商全稱:Rohm 功能描述:3 channel 75ohm driver for DVD (Y/C MIX Type) |
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