TEA1062 datasheet(5/28 Pages) PHILIPS

부품명	TEA1062

상세설명	Low voltage transmission circuits with dialler interface

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제조업체	PHILIPS [NXP Semiconductors]

홈페이지	http://www.nxp.com

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5 / 28 page

1997 Sep 03

5

Philips Semiconductors

Product speciﬁcation

Low voltage transmission circuits with

dialler interface

TEA1062; TEA1062A

FUNCTIONAL DESCRIPTION

Supplies VCC, LN, SLPE, REG and STAB

Power for the IC and its peripheral circuits is usually

obtained from the telephone line. The supply voltage is

derived from the line via a dropping resistor and regulated

by the IC. The supply voltage VCC may also be used to

supply external circuits e.g. dialling and control circuits.

Decoupling of the supply voltage is performed by a

capacitor between VCC and VEE. The internal voltage

regulator is decoupled by a capacitor between REG and

VEE.

The DC current flowing into the set is determined by the

exchange supply voltage Vexch, the feeding bridge

resistance Rexch and the DC resistance of the telephone

line Rline.

The circuit has an internal current stabilizer operating at a

level determined by a 3.6 k

Ω resistor connected between

STAB and VEE (see Fig.9). When the line current (Iline) is

more than 0.5 mA greater than the sum of the IC supply

current (ICC) and the current drawn by the peripheral

circuitry connected to VCC (Ip) the excess current is

shunted to VEE via LN.

The regulated voltage on the line terminal (VLN) can be

calculated as:

VLN =Vref +ISLPE × R9

VLN =Vref + {(Iline − ICC − 0.5 × 10−3 A) − Ip} × R9

Vref is an internally generated temperature compensated

reference voltage of 3.7 V and R9 is an external resistor

connected between SLPE and VEE.

In normal use the value of R9 would be 20

Ω.

Changing the value of R9 will also affect microphone gain,

DTMF gain, gain control characteristics, sidetone level,

maximum output swing on LN and the DC characteristics

(especially at the lower voltages).

Under normal conditions, when ISLPE >> ICC + 0.5 mA + Ip,

the static behaviour of the circuit is that of a 3.7 V regulator

diode with an internal resistance equal to that of R9. In the

audio frequency range the dynamic impedance is largely

determined by R1. Fig.3 shows the equivalent impedance

of the circuit.

At line currents below 9 mA the internal reference voltage

is automatically adjusted to a lower value (typically 1.6 V

at 1 mA). This means that more sets can be operated in

parallel with DC line voltages (excluding the polarity guard)

down to an absolute minimum voltage of 1.6 V. At line

currents below 9 mA the circuit has limited sending and

receiving levels. The internal reference voltage can be

adjusted by means of an external resistor (RVA).

This resistor when connected between LN and REG will

decrease the internal reference voltage and when

connected between REG and SLPE will increase the

internal reference voltage.

Current (Ip) available from VCC for peripheral circuits

depends on the external components used. Fig.10 shows

this current for VCC > 2.2 V. If MUTE is LOW (TEA1062) or

MUTE is HIGH (TEA1062A) when the receiving amplifier

is driven, the available current is further reduced. Current

availability can be increased by connecting the supply IC

(TEA1081) in parallel with R1 as shown in Fig.19 and

Fig.20, or by increasing the DC line voltage by means of

an external resistor (RVA) connected between REG and

SLPE (Fig.18).

Fig.3 Equivalent impedance circuit.

Leq =C3 × R9 × Rp.

Rp = 16.2 kΩ.

handbook, halfpage

REG

V

EE

VCC

LN

MBA454

Leq

R p

R1

V ref

R9

20

Ω

C3

4.7

µF

C1

100

µF

유사한 부품 번호 - TEA1062

제조업체	부품명	데이터시트	상세설명
Unisonic Technologies	TEA1062AN	177Kb / 13P	LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE
	TEA1062AN-D16-T	293Kb / 13P	LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE
	TEA1062AN-S16-R	293Kb / 13P	LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE
	TEA1062ANG-D16-T	293Kb / 13P	LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE
	TEA1062ANG-D16-T	334Kb / 14P	LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT

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유사한 설명 - TEA1062

제조업체	부품명	데이터시트	상세설명
List of Unclassifed Man...	SC1062	742Kb / 15P	LOW VOLTAGE TRANSMISSION CIRCUITS WITH DIALLER INTERFACE
NXP Semiconductors	TEA1112	154Kb / 20P	Low voltage versatile telephone transmission circuits with dialler interface 1997 Mar 26
System Logic Semiconduc...	SL1062A	86Kb / 9P	Low Voltage Transmission Circuit with Dialler Interface
Unisonic Technologies	UTCTEA1062N	177Kb / 13P	LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE
	TEA1062N	293Kb / 13P	LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE
	UTCTEA1062	113Kb / 13P	LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE
List of Unclassifed Man...	TEA1060	757Kb / 16P	VERSATILE TELEPHONE TRANSMISSION CIRCUITS WITH DIALLER INTERFACE
NXP Semiconductors	TEA1113	181Kb / 20P	Low voltage versatile telephone transmission circuit with dialler interface 1997 Mar 27
Unisonic Technologies	TEA1110A	224Kb / 9P	LOW VOLTAGE VERSATILE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE
NXP Semiconductors	TEA1110A	187Kb / 20P	Low voltage versatile telephone transmission circuit with dialler interface 1997 Apr 22

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TEA1062 데이터시트(PDF) 5 Page - NXP Semiconductors

TEA1062 데이터시트(HTML) 5 Page - NXP Semiconductors

유사한 부품 번호 - TEA1062

유사한 설명 - TEA1062

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