- 您現在的位置：買賣IC網 > PDF目錄382703 > U4090B-NFN Low power dual voltage comparators PDF資料下載
參數資料
| 型號： | U4090B-NFN |
| 英文描述： | Low power dual voltage comparators |
| 中文描述： | 電話線路（支援） |
| 文件頁數： | 5/34頁 |
| 文件大小： | 622K |
| 代理商： | U4090B-NFN |
第1頁第2頁第3頁第4頁當前第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁
5
U4090B-N
4740A–CORD–09/03
28
INLDR
Input of receive level detector
29
TLDT
Time constant of transmit level detector
30
TLDR
Time constant of receive level detector
31
AGA
Automatic gain adjustment with line current, a resistor connected from this pin to GND sets the starting
point, maximum gain change: 6 dB.
32
IREF
Internal reference current generation; RREF = 62 k ; IREF = 20 μA
33
STO
Sidetone reduction output
Output resistance approx.: 300
Maximum load impedance: 10 k .
,
34
VM
Reference node for microphone-earphone and loudspeaker amplifier, supply for electret microphone
(IM 700 mA)
35
MUTR
Three-state mute input
1.
Normal operation
2.
Mute for ear piece
3.
Mute for RECIN signal Condition of earpiece mute is stored
36
RECO 2
Inverting output of receiving amplifier
37
STI S
Input for sidetone network (short loop) or for answering machine
38
STI L
Input for sidetone network (long loop)
39
RAC
Input of receiving amplifier for AC coupling in feedback path
40
RECO 1
Output of receiving amplifier
41
GR
A resistor connected from this pin to GND sets the receiving amplification of the circuit; amplifier RA1
can be muted by applying VMP to GR
42
TTXA
Time constant of anti-clipping in transmit path
43
RECIN
Input of receiving path; input impedance is typically 80 k
44
TXIN
Input of intermediate transmit stage, input resistance is typically 20 k
Pin Description (Continued)
Pin
Symbol
Function
相關PDF資料 |
PDF描述 |
|---|---|
| U4090B-NFNG3 | Low power dual voltage comparators |
| U4090B-P | Low power dual voltage comparators |
| U4091BM-AFN | Low power dual voltage comparators |
| U4091BM-AFNG3 | Low power dual voltage comparators |
| U4091BM-MFN | Low power dual voltage comparators |
相關代理商/技術參數 |
參數描述 |
|---|---|
| U4090B-NFNG3 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
| U4090B-P | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Monolithic Integrated Feature Phone Circuit EMI Improved |
| U4090B-PFNG3Y | 功能描述:電信語音調制 IC COM.CORDED - FEATURE RoHS:否 制造商:Epson Electronics America 產品: 應用:Voice Guidance product 封裝 / 箱體:PQFP-52 電源電壓-最大:3.6 V, 5.5 V 最大工作溫度: 最小工作溫度: 封裝: |
| U4090B-PFNY | 功能描述:電信語音調制 IC COM.CORDED - FEATURE RoHS:否 制造商:Epson Electronics America 產品: 應用:Voice Guidance product 封裝 / 箱體:PQFP-52 電源電壓-最大:3.6 V, 5.5 V 最大工作溫度: 最小工作溫度: 封裝: |
| U4091B | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Programmable Telephone Audio Processor |
發布緊急采購，3分鐘左右您將得到回復。