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TEA1118

Versatile cordless transmisssion circuit

Philips Electronics 

Philips Semiconductors

Versatile cordless transmisssion circuit

Product specification

TEA1118; TEA1118A

SYMBOL

PARAMETER

CONDITIONS

MIN. TYP. MAX. UNIT

Transmit amplifier (pins TX+, TX− and GAT)

Zi

input impedance

differential between pins

TX+ and TX−

Gvtx

∆Gvtx(f)

single-ended between pins

TX+/TX− and VEE

voltage gain from TX+/TX− to LN

gain variation with frequency

referred to 1 kHz

∆Gvtx(T)

gain variation with temperature

referred to 25 °C

CMRR common mode rejection ratio

∆Gvtxr

gain voltage reduction range

(TEA1118 only)

VLN(max)

maximum sending signal

(RMS value)

VTX(max)

maximum transmit input voltage

(RMS value)

Vnotx

noise output voltage at pin LN; pins

TX+/TX− shorted through 200 Ω

VTX = 200 mV (RMS)

f = 300 to 3400 Hz

Tamb = −25 to +75 °C

external resistor connected

between GAT and REG

Iline = 15 mA; THD = 2%

Iline = 4 mA; THD = 10%

Iline = 15 mA; THD = 2%

Iline = 75 mA; THD = 2%

psophometrically weighted

(P53 curve)

−

−

10.1

−

−

−

−

1.4

−

−

−

−

62.5 −

36.5 −

11.3 12.5

±0.2 −

±0.3 −

60

−

−

6

1.7 −

0.8 −

0.45 −

0.9 −

−84 −

kΩ

kΩ

dB

dB

dB

dB

dB

V

V

V

V

dBmp

Transmit mute (pin TMUTE; TEA1118A only)

∆Gvtxm

VIL

VIH

ITMUTE

gain reduction

LOW level input voltage

HIGH level input voltage

input current

Receive amplifier (pins IR, QR and GAR)

Zi

Gvrx

∆Gvrx(f)

input impedance

voltage gain from IR to QR

gain variation with frequency

referenced to 1 kHz

∆Gvrx(T)

gain variation with temperature

referenced to 25 °C

∆Gvrxr

gain voltage reduction range

Vo(rms)

maximum receive signal

(RMS value)

Vnorx(rms)

noise output voltage at pin QR

(RMS value)

TEA1118

TEA1118A

TMUTE = HIGH

input level = HIGH

VIR = 4 mV (RMS)

f = 300 to 3400 Hz

Tamb = −25 to +75 °C

external resistor connected

between GAR and QR

IP = 0 mA sine wave drive;

RL = 150 Ω; THD = 2%

IP = 0 mA sine wave drive;

RL = 450 Ω; THD = 2%

IR open-circuit;

RL = 150 Ω;

psophometrically weighted

(P53 curve)

−

80

VEE − 0.4 −

VEE + 1.5 −

−

1.25

−

20

29.8

31

−

±0.2

−

±0.3

−

−

−

0.25

−

0.35

−

−89

−

−86

−

dB

VEE + 0.3 V

VCC + 0.4 V

3

µA

−

kΩ

32.2

dB

−

dB

−

dB

12

dB

−

V

−

V

−

dBVp

−

dBVp

1997 Jul 14

14

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