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參數(shù)資料
| 型號： | MC33219ADW |
| 廠商： | MOTOROLA INC |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | VOICE SWITCHED SPEAKERPHONE CIRCUIT |
| 中文描述： | SPEAKER PHONE CIRCUIT, PDSO24 |
| 封裝： | PLASTIC, SOIC-24 |
| 文件頁數(shù)： | 6/28頁 |
| 文件大?。?/td> | 562K |
| 代理商： | MC33219ADW |
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MC33219A
6
MOTOROLA ANALOG IC DEVICE DATA
PIN FUNCTION DESCRIPTION
Pin
Symbol
Description
1
CP2
A capacitor at this pin stores voltage representing the transmit background noise and speech levels
for the background noise monitor.
2
XDI
Input to the transmit background noise monitor.
3
CPT
An RC sets the time constant for the transmit background noise monitor.
4
TLI
Input to the transmit level detector.
5
TLO
Output of the transmit level detector.
6
VB
A mid–supply reference voltage, and analog ground for the amplifiers. This must be well bypassed for
proper power supply rejection.
7
CT
CD
An RC sets the switching time between transmit, receive and idle modes.
8
Chip Disable (Logic Input). When low, the IC is active. When high, the entire IC is powered down and
non–functional, except for VB. Input impedance is nominally 125 k
.
No internal connection.
9
NC
10
CPR
An RC sets the time constant for the receive background noise monitor.
11
RLI
Input to the receive level detector.
12
RLO
Output of the receive level detector.
13
GND
Ground pin for the entire IC.
14
RAO
Output of the receive attenuator.
15
RAI
Input to the receive attenuator and the dial tone detector. Input impedance is nominally 100 k
.
16
RXO
Output of the receive amplifier.
17
RXI
Inverting input of the receive amplifier. Bias current flows out of the pin.
18
MUTE
Mute Input (Logic Input). A logic low sets normal operation. A logic high mutes the microphone
amplifier only. Input impedance is nominally 67 k
.
19
VLC
Volume control. When VLC = VB, maximum receive gain is set when in the receive mode. When
VLC = VB – 1.0 V, receive gain is down
≈
40 dB. No effect in the transmit or idle mode. Current flow is
out of the pin. Input impedance is nominally 167 k
.
20
MCI
Inverting input of the microphone amplifier. Bias current flows out of the pin.
21
MCO
Output of the microphone amplifier.
22
TAI
Input of the transmit attenuator. Input impedance is nominally 100 k
.
23
TAO
Output of the transmit attenuator.
24
VCC
Power Supply Pin. Operating Range is 2.7 V to 6.5 Vdc. Bypassing is required.
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| MC33232D | 功能描述:功率因數(shù)校正 IC Critical Mode PFC RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| MC33232DG | 功能描述:功率因數(shù)校正 IC Critical Mode PFC RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| MC33232DR2 | 功能描述:功率因數(shù)校正 IC Critical Mode PFC RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| MC33232DR2G | 功能描述:功率因數(shù)校正 IC Critical Mode PFC RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| MC33232P | 功能描述:功率因數(shù)校正 IC Critical Mode PFC RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
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