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TEA1066T

Versatile telephone transmission circuit with dialler interface

Philips Electronics 

Philips Semiconductors

Versatile telephone transmission circuit

with dialler interface

Product specification

TEA1066T

SYMBOL

PARAMETER

CONDITIONS

Microphone inputs MICL+ and MICL−; MICH+ and MICH−

Zi

input impedance

MICL+ (pin 9); MICL− (pin 7)

MICH+ (pin 10); MICH− (pin 8)

CMRR

common mode rejection ratio

Gv

voltage gain

MICL+/MICL− to LN

Iline = 15 mA; R7 = 68 Ω

∆Gvf

MICH+/MICH− to LN

gain variation with frequency at

f = 300 Hz and 3400 Hz

with respect to 800 Hz

∆GvT

gain variation with temperature at

Tamb = −25 °C and +75 °C

Iline = 50 mA; with respect to

800 Hz

Dual-tone multi-frequency input DTMF (pin 15)

Zi

Gv

∆Gvf

input impedance

voltage gain from DTMF to LN

gain variation with frequency at

f = 300 Hz and 3400 Hz

Iline = 15 mA; R7= 68 kΩ

with respect to 800 Hz

∆GvT

gain variation with temperature at

Tamb = −25 °C and +75 °C

Iline = 50 mA; with respect

to 25 °C

Gain adjustment connections GAS1 and GAS2 (pins 2 and 3)

∆Gv

gain variation with R7, transmitting

amplifier

Transmitting amplifier output LN (pin 1)

VLN(rms)

output voltage (RMS value)

Vno(rms)

noise output voltage (RMS value)

Iline = 15 mA; THD = 2%

Iline = 15 mA; THD = 10%

Iline = 15 mA; R7 = 68 kΩ;

microphone inputs open;

psophometrically weighted

(P53 curve)

Receiving amplifier input IR (pin 13)

Zi

input impedance

Receiving amplifier outputs QR+ and QR− (pins 5 and 4)

Zo

Gv

∆Gvf

output impedance

single-ended

voltage gain from IR to QR+ or QR− Iline = 15 mA; R4 = 100 kΩ

single-ended; RL = 300 Ω

differential; RL = 600 Ω

gain variation with frequency at

f = 300 Hz and 3400 Hz

with respect to 800 Hz

∆GvT

gain variation with temperature at

Tamb = −25 °C and +75 °C

Iline = 50 mA; with respect to

25 °C

MIN. TYP. MAX. UNIT

3.3 4.1 4.9 kΩ

16.5 20.4 24.5 kΩ

−

82 −

dB

51 52 53 dB

37 38 39 dB

−0.5 ±0.2 +0.5 dB

−

±0.2 −

dB

16.8 20.7 24.6 kΩ

24.5 25.5 26.5 dB

−0.5 ±0.2 +0.5 dB

−

±0.2 −

dB

−8 −

+8 dB

1.9 2.3 −

−

2.6 −

−

−70 −

V

V

dBmp

17 21 25 kΩ

−

4

−

Ω

24 25 26 dB

30 31 32 dB

−0.5 ±0.2 +0.5 dB

−

±0.2 −

dB

1996 Apr 04

10

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