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参数资料
| 型号： | TA1384FNG |
| 元件分类： | 调谐器 |
| 英文描述： | 2-BAND, VIDEO TUNER, PDSO24 |
| 封装： | 0.300 INCH, 0.65 MM PITCH, LEAD FREE, PLASTIC, SSOP-24 |
| 文件页数： | 6/22页 |
| 文件大小： | 302K |
| 代理商： | TA1384FNG |
TA1384FNG
2004/11/24
14
●
Rsa, Rsb: Reference frequency divider ratio select bit.
Rsa
Rsb
DIVIDER RATIO
COMPARE
FREQUENCY
STEP FREQUENCY
1
1/256
15.265kHz
62.5kHz
0
1
1/512
7.8125kHz
31.25kHz
X
1
1/320
12.5kHz
50kHz
●
OS: tuning amplifier control bit
[0] : tuning amplifier ON (normal operation)
[1] : tuning amplifier OFF (charge pump is sink mode)
●
B4, B3, B2, B1: Band output port control and band change control bit
[0] : band output driver ON
[1] : band output driver OFF
Band
B4
B3
B2
B1
VHF Band
X
0
1
VHF Band
X
1
0
UHF Band
X
0
When the bandswitch data is [1] for either B1 or B2, VHF mode is effective.
When the bandswitch data is [0] for both B1 and B2, UHF mode is effective.
●
POR: power-on reset flag
[0]
: normal operation
[1] : reset operation
●
FL: lock detect flag
[0]
: unlocked
[1] : locked
●
X : don’t care
-EXAMPLE OF BUS DATA TRANSMITTER-
S: Start
ADR: Address Byte
DIV1: Divider Byte 1 (frequency data)
DIV2: Divider Byte 2 (frequency data)
CONT: Control Byte
BAND: Bandswitch Byte
A: Acknowledge
P: Stop
[1] Transmitter - 1
S
ADR
A
DIV1
A
DIV2
A
CONT
A
BAND
A
P
[2] Transmitter - 2
S
ADR
A
CONT
A
BAND
A
DIV1
A
DIV2
A
P
[3] Transmitter – 3 (This can be applied if control data and bandswitch data have already been programmed.)
S
ADR
A
DIV1
A
DIV2
A
P
[4] Transmitter – 4 (This can be applied if frequency data have already been programmed.)
S
ADR
A
CONT
A
BAND
A
P
[5] Transmitter – 5 (This can be applied if frequency counter data and bandswitch data have already been programmed.)
S
ADR
A
CONT
A
P
Until the IC-bus STOP condition is detected, it is possible to input the additional data without transmitting the address
data again. (For example: Frequency sweep is possible with additional frequency data.)
If data transmission is aborted, data programmed before the abort are valid.
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