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參數(shù)資料
| 型號： | SM5302AS |
| 廠商： | Seiko NPC Corporation |
| 英文描述： | 3-channel Video Buffer with Built-in wideband LPF |
| 中文描述： | 3通道視頻緩沖器，具有內(nèi)置的寬帶低通濾波器 |
| 文件頁數(shù)： | 16/26頁 |
| 文件大小： | 503K |
| 代理商： | SM5302AS |
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SM5302A
NIPPON PRECISION CIRCUITS INC.—16
(7) Filter bypass mode
Register name: CONDITION2
Flag name: BYPASS
This flag allows the lowpass filter to be bypassed. The output gain can be switched, even in filter bypass
mode. The input type, multiplexer function, and output gain can all be set just as in filter mode. However,
the cutoff frequency and fc mode settings have no effect on the outputs.
(8) Maximum number of slave addresses
Register name: CONDITION2
Flag name: NCA
The NCA flag sets the maximum number of slave addresses to either 2 or 3. The NCA setting modifies the
ADS input pin equivalent circuit as shown below.
When NCA
=
LOW (max
=
2), switches SW31 to SW33 are OFF, reducing the current consumed in com-
parison to when NCA
=
HIGH (max
=
3). Note that only 2 ADS input levels (LOW or HIGH) are valid.
When NCA
=
HIGH (max
=
3), switches SW31 to SW33 are ON and hence current is consumed regardless
of whether the ADS input is LOW, HIGH, or Open. However, note that 3 ADS input levels are valid.
Note. The default value for NCA is HIGH (max
=
3). If NCA is once set to LOW (max
=
2) for a device
addressed by the setting when ADS is Open, that device is subsequently no longer accessible.
Flag name
Filter
Default
BYPASS
L
Filter mode
(signals pass through lowpass filter)
H
Filter bypass mode
(signals bypass lowpass filter)
Flag name
Maximum number of
slave address
Default
ADS level
Slave address
ADS pin
current flow
NCA
L
2
(2-address mode)
LOW
HIGH
Open
1001000
1001001
Invalid
No
H
3
(3-address mode)
LOW
HIGH
Open
1001000
1001001
1001010
Yes
ADS
Address
NCA=2
NCA=3
SW21
SW31
SW32
SW33
NCA=L(2)
NCA=H(3)
I C Control
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