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參數(shù)資料
| 型號： | LA17000M |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Tuner System IC with Built-in PLL for Car Audio Applications |
| 中文描述： | 調(diào)諧器集成電路與系統(tǒng)專為汽車音響應用的鎖相環(huán) |
| 文件頁數(shù)： | 24/54頁 |
| 文件大?。?/td> | 830K |
| 代理商： | LA17000M |
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LA17000M
No. 6522-24/54
Programmable Divider Configuration
DVS SNS
1
Input pin
PLL IN
Divisor setting (N)
272 to 65535
Input frequency range
10 to 160 MHz
(A)
*
Minimum input sensitivity f[MHz]
10
≤
f < 130
40 mVrms
(A) PLL IN
130
≤
f <160
70 mVrms
General-purpose Counter Configuration
In the LA17000M, the general-purpose counter consists of a 20-bit binary counter. The count results can be read
through the DO pin, MSB first.
When using the general-purpose counter for cycle measurement, the measurement period can be selected from among 4,
8, 32, and 64 ms through the GT0 and GT1 data. The cycle of the signal that is input to the HCTR pin or the LCTR pin
can then be measured by counting the number of pulses that are input to the general-purpose counter within this mea-
surement period.
When using the general-purpose counter to measure a cycle, it is also possible to measure the cycle of a signal that is
input to the LCTR pin according to the number of check signals (refer to the
“
Check Signal Frequency
”
table below)
input to the general-purpose counter within one or two cycles of the signal that is input to the LCTR.
Check Signal Frequency
X tal OSC
10.25 MHz
10.35 MHz
fref other than 30, 9, 3 kHz
1150 kHz
fref = 30, 9, 3 kHz
1030 kHz
Check signal
10.25 kHz
CTS1
1
Input pin
HCTR
Measurement mode
Frequency
Frequency range
0.4 to 25.0 MHz
Input sensitivity
40 mVrms *1
S1
*1 CTC = 0: 40 mVrms; however, when CTC = 1, the frequency range is HCTR: 8 to 12 MHz
CTC = 1: 70 mVrms
General-purpose counter
(20-bit binary counter)
DO pin
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