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| 型號(hào)： | UPD178024GC-051 |
| 廠商： | NEC Corp. |
| 元件分類： | 通用總線功能 |
| 英文描述： | 8-BIT SINGLE-CHIP MICROCONTROLLER WITH ON-CHIP PRESCALER, PLL FREQUENCY SYNTHESIZER, AND IF COUNTER FOR AUTOMOTIVE FM/MW/LW RADIO WITH CD PLAYER |
| 中文描述： | 8位單片機(jī)具有片上標(biāo)器，鎖相環(huán)頻率合成器，如柜臺(tái)，汽車調(diào)頻/中波/龍運(yùn)收音機(jī)帶CD播放器 |
| 文件頁(yè)數(shù)： | 65/98頁(yè) |
| 文件大小： | 467K |
| 代理商： | UPD178024GC-051 |
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Data Sheet U14608EJ1V0DS00
65
μ
PD178024GC-051
Indicator
Description
A1 to E10
Segments “A1” through “E10” indicate the segments of the spectrum analyzer display as follows:
A10
A 9
A 8
A 7
A 6
A 5
A 4
A 3
A 2
A 1
B10
B 9
B 8
B 7
B 6
B 5
B 4
B 3
B 2
B 1
C10
C 9
C 8
C 7
C 6
C 5
C 4
C 3
C 2
C 1
D10
D 9
D 8
D 7
D 6
D 5
D 4
D 3
D 2
D 1
E10
E 9
E 8
E 7
E 6
E 5
E 4
E 3
E 2
E 1
The spectrum analyzer is displayed as follows in the power-on status.
Spectrum analyzer display is to display the audio level in the audio frequency band corresponding to
each row of the five columns of spectrum analyzer segments “A1 to A10” through “E1 to E10”.
For the assignment of an audio frequency band to each column, refer to the description of the SPEC
A, SPEC B, and SPEC C pins.
Of all the 10 levels of segments “1” to “10” constituting one column, all the levels of segments,
except those falling below a given audio level, light to display an audio level.
When the audio level is 6.
When the audio level is 10.
When the audio level is 0.
For how an audio level is identified, refer to the description of the SPEC IN pin.
An audio level the same as the audio level input to the SPEC IN pin is displayed regardless of the
mute status.
During spectrum analyzer display, the displayed contents are updated every 50 ms.
When the spectrum analyzer is not displayed, all segments, “A1” through “E10”, remain dark.
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