参数资料
型号: LM4889LD/NOPB
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 音频/视频放大
英文描述: 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO10
封装: LLP-10
文件页数: 6/9页
文件大小: 656K
代理商: LM4889LD/NOPB
LA72914V
No.A1859-6/9
Continued from preceding page.
Pin No.
Pin Name
Description
Equivalent circuit
7
De-emphasis Filter
De-emphasis filter pin.
De-emphasis time constant must be matching at
emphasis time constant.
Recommend value is 6800pF to 0.01
μF. Connect Cap.
Coupling to pin8.
7
C1
SIG
8
RX Audio IN
Internal DC bias is 2.4V.
Please connect Cap. coupling.
8
C1
2.4V
9
Audio OUT
Audio signal output pin.
Push-pull output pin. Output level is 1.0Vp-p at 1kHz.
(Load resistance=10k
Ω)
9
10
FM Filter
FM demodulator filter pin.
Please connect 1.0
μF capacitor.
(If you need rising of low frequency gain, then change
more large capacitor in use.)
10
11
AGC Filter
FM AGC filter pin.
Please connect 0.1
μF capacitor. If you need reduce
AGC-gain, then connect resistor (R1: 11pin-VCC)
If FM AGC no need, please set pin11 voltage over 4.5V
DC voltage.
11
C1
R1
AGC-DET
Continued on next page.
相关PDF资料
PDF描述
LM4890LD/NOPB 1 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO10
LM4890IBPX/NOPB 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8
LM4890IBP/NOPB 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8
LM4890ITL/NOPB 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9
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相关代理商/技术参数
参数描述
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