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參數資料
| 型號： | HC1062A |
| 英文描述： | Low Voltage Telephone Speech Transmission Circuit / High/Low Level Mute |
| 中文描述： | 低壓輸電線路電話語音/高/低級別靜音 |
| 文件頁數： | 1/6頁 |
| 文件大?。?/td> | 1066K |
| 代理商： | HC1062A |
Page 1 of 6
1. Overview
The
HC
1062(High Level Mute) /
HC
1062A (Low Level Mute) are integrated circuit that perform
all speech and line interface functions required in fully electronic telephone sets. They also perform electronic
switching between dialing and speech. The ICs operate at line voltage down to 1.6V (with reduce performance)
to facilitate the use of more telephone sets connected in parallel.
Low line voltage down to 1.6V (excluding polarity guard)
Voltage regulator with adjustable static resistance
Provides a supply for external circuit
Symmetrical high-impedance inputs (64k
Asymmetrical high-impedance (32k
DTMF signal input with confidence tone
Mute input for pulse or DTMF dialing
Receiving amplifier for dynamic, magnetic or piezoelectric earpieces
Large gain range settings for microphone and earpieces amplifiers
Line loss compensation (line current dependent) for microphone and earpiece amplifier
Gain control curve adaptable for exchange supply
DC line voltage adjustment facility
) for dynamic, magnetic or piezoelectric microphone
) for electret microphone
dB
Reference
Control Current
Low Voltage
Reference
10
7
6
11
12
13
9
14
15
8
16
2
4
5
1
3
Low Voltage Telephone Speech Transmission Circuit (High Level Mute)
HC1062
Low Voltage Telephone Speech Transmission Circuit (Low Level Mute)
HC1062A
HSiN Semiconductor Pte Ltd
www.hsin.com.sg
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