參數(shù)資料
型號(hào)： 935260690112
廠商： NXP SEMICONDUCTORS
元件分類： 無(wú)繩電話/電話
英文描述： TELEPHONE MULTIFUNCTION CKT, PDSO28
封裝： PLASTIC, SOT-136, SO-28
文件頁(yè)數(shù)： 50/56頁(yè)
文件大?。?/td> 360K
代理商： 935260690112
voltage at pin VDD is regulated at 3.3 V to supply the dialler and ringer parts and peripheral circuits.
Dialler part
The dialler and ringer parts of the IC are responsible for the system control, system settings and the generation and detection of various
signals.
The dialler offers a 32-digit last number redial function. The UBA2051x offers in addition 13 memories (3 direct + 10 indirect) of 21 digits.
During pulse dialling the DMO output of the UBA205x can be used to decrease the line voltage. During tone dialling the LED output of the
UBA205xA is used to indicate DTMF dialling. A keytone is available if a valid key is pressed for the types UBA2050x and UBA2051C.
Ringer part
The ringer part offers a discriminator input which enables the MDY/TONE output as soon as a valid ring frequency is detected. It offers a
choice of 4 different 3-tone melodies and a 4-level volume control, both programmable via the keyboard. An external very low cost ringer
output stage for a buzzer is needed. Stabilized supply (V
DD) during ringer mode for dialler and ringer part is included.
Speech/transmission part
l
Low DC line voltage; operates down to 1.45 V (excluding voltage drop over external polarity guard)
l
Line voltage regulator with adjustable DC voltage
l
Regulated 3.3 V supply (V
DD) for the dialler part and peripherals compatible with:
- Speech mode
- Ringer mode
- Trickle mode.
l
Unregulated supply (V
CC) for the transmission part and peripherals
l
Transmit stage with:
- Microphone amplifier with symmetrical high-impedance inputs
- DTMF input with confidence tone on receive output.
l
Receive stage with:
- Receive amplifier with asymmetrical output
- Earpiece amplifier with adjustable gain (and gain boost facility) for all types of earpieces.
l
AGC: line loss compensation for microphone and receive amplifiers.
Dialler part
l
Last Number Redial (LNR) (32 digits)
l
Pulse dialling:
- 10 PPS and 20 PPS (resistor option)
- M/B 2 : 3 and 1 : 2 (resistor option).
l
DTMF timing:
Features
相關(guān)PDF資料
PDF描述
935260690118 TELEPHONE MULTIFUNCTION CKT, PDSO28
0724_XP132A1275SR Power MOS FET
935260674518 SPECIALTY TELECOM CIRCUIT, PDSO24
935263632518 SPECIALTY TELECOM CIRCUIT, PDSO24
935260678118 LVC/LCX/Z SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
935261069122 制造商:NXP Semiconductors 功能描述:IC SECURITY TRANSPONDER PLLMC
935262025112 制造商:NXP Semiconductors 功能描述:SUB ONLY IC
935262217118 制造商:NXP Semiconductors 功能描述:Real Time Clock Serial 8-Pin SO T/R
935264217557 制造商:NXP Semiconductors 功能描述:SUB ONLY IC
935267356112 制造商:NXP Semiconductors 功能描述:IC TEA1507PN
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*