CODEC FOR DIGITAL ANSWERING PHONE

S5T8554B03

7

TIMING DIAGRAM (Continued)

Figure 3.

TRANSMISSION CHARACTERISTICS

(Unless otherwise specified: Ta = 0

Vin = 0dBm0, transmit input amplifier connected for unity-gain, non-inverting )

Characteristic

System

Test Conditions

Min.

Typ.

Max.

Unit

Amplitude Response

Receive Gain, Absolute

Ta = 25

Input = Digital code sequence for

0dBm0 signal at 1020Hz

−1.5

−

1.5

dB

Receive Gain, Relative to

f = 0Hz to 3000Hz

f = 3300Hz

f = 3400Hz

−0.6

−0.55

−1.5

−

0.5

0.5

1.5

dB

Absolute Receive Gain

Variations with

temperature

∆G

V(ARX)

/

∆T

Ta = 0

°C to 70°C

−

−

± 0.1

dB