TCM29C13, TCM29C14, TCM29C16, TCM29C17,

TCM129C13, TCM129C14, TCM129C16, TCM129C17

COMBINED SINGLE-CHIP PCM CODEC AND FILTER

SCTS011H – APRIL 1986 – REVISED JULY 1996

7

POST OFFICE BOX 655303

(see Notes 4, 5, and 6)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Encoder milliwatt response (transmit gain tolerance)

Signal input = 1.064 Vrms for

µ-law,

±004 ±002

dBm0

Encoder milliwatt response (transmit gain tolerance)

g

µ

,

Signal input = 1.068 Vrms for A-law

±0.04 ±0.02

dBm0

Encoder milliwatt response additional tolerance

(nominal supplies and temperature)

TA = 0°C to 70°C, Supplies = ± 5%

± 0.08

dB

Digital milliwatt response (receive tolerance gain)

relative to zero-transmission-level point

Signal input per CCITT G.711,

Output signal = 1 kHz

±0.04 ±0.02

dBm0

Digital milliwatt response variation with temperature

and supplies

TA = 0°C to 70°C, Supplies = ± 5%

± 0.08

dB

µ-law

RL = 600 Ω

2.76

Zero-transmission-level point, transmit channel

A-law

RL = 600 Ω

2.79

dBm

,

(0 dBm0)

µ-law

RL = 900 Ω

1

dBm

A-law

RL = 900 Ω

1.03

µ-law

RL = 600 Ω

5.76

Zero-transmission-level point, receive channel

A-law

RL = 600 Ω

5.79

dBm

(0 dBm0)

µ-law

RL = 900 Ω

4

dBm

A-law

RL = 900 Ω

4.03

NOTES: 4. Unless otherwise noted, the analog input is a 0-dBm0, 1020-Hz sine wave, where 0 dBm0 is defined as the zero-reference point of

the channel under test. This corresponds to an analog signal input of 1.064 Vrms or an output of 1.503 Vrms.

5. The input amplifier is set for noninverting unity gain. The digital input is a PCM bit stream generated by passing a 0-dBm0, 1020-Hz

sine wave through an ideal encoder.

6. Receive output is measured single ended in the maximum gain configuration. To set the output amplifier for maximum gain, GSR is

connected to PWRO – and the output is taken at PWRO+. All output levels are (sin x)/x corrected.

gain tracking over recommended ranges of supply voltage and operating free-air temperature,

reference level = –10 dBm0

PARAMETER

TEST CONDITIONS

MIN

MAX

UNIT

3

≥ input level ≥ –40 dBm0

±0.25

Transmit gain-tracking error, sinusoidal input

– 40 > input level

≥ –50 dBm0

±0.5

dB

– 50 > input level

≥ –55 dBm0

±1.2

3

≥ input level ≥ –40 dBm0

±0.25

Receive gain-tracking error, sinusoidal input

– 40 > input level

≥ –50 dBm0

±0.5

dB

– 50 > input level

≥ –55 dBm0

±1.2