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| 型號(hào)： | UPC1854A |
| 廠商： | NEC Corp. |
| 英文描述： | I2C BUS-COMPATIBLE US MTS PROCESSING LSI |
| 中文描述： | I2C總線兼容美國的多邊貿(mào)易體制處理LSI |
| 文件頁數(shù)： | 33/48頁 |
| 文件大小： | 251K |
| 代理商： | UPC1854A |
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μ
PC1854A
33
Data Sheet S12816EJ3V0DS00
6.5 Caution on External Components
According to the license contract with THAT Corporation, use the following for external components.
With regard to the use of other external components, please contact to THAT Corporation.
Table 6-3. External Components
Pin symbol
Pin description
External component
ITI
Timing current setting
Metal film resistor (
±
1 %)
STI
Spectral RMS timing
Tantalum capacitor (
±
10 %)
WTI
Wide-band RMS timing
6.6 Change of Electrical Characteristics by External Components
(1) SAP sensitivity can be lowered by inserting a resistor between the SDT pin and GND.
(2) Noise sensitivity can be changed by changing the value of the resistor between the NDT pin and GND.
(3) The capture range can be changed by changing the recommended 1
μ
F value of the capacitor between the
φ
D1
and
φ
D2 pins (Refer to
BLOCK DIAGRAM
).
Reducing the capacitor value increases the capture range, and increasing it reduces the capture range. However,
too small a capacitor value may cause the distortion rate to become worse during stereo output, or may cause
malfunction. In this case, please contact NEC.
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