Si3226/7

Si3208/9

Preliminary Rev. 0.33

7

Longitudinal Performance

Longitudinal to Metallic/PCM

Balance (forward or reverse)

200 Hz to 1 kHz

58

60

—

dB

1kHz to 3.4kHz

53

58

—

dB

Metallic/PCM to Longitudinal Bal-

ance

200 Hz to 3.4 kHz

40

—

—

dB

Longitudinal Impedance

200 Hz to 3.4 kHz at TIP or RING

—

50

—

Ω

Longitudinal Current per Pin

Active off-hook

200Hz to 3.4kHz

——

30

mA

DC Current

Differential

—

—

45

mA

Common Mode

—

—

30

mA

Differential + Common Mode

—

—

45

mA

Table 4. AC Characteristics (Continued)

Parameter

Test Condition

Min

Typ

Max

Unit

Notes:

1. The input signal level should be 0 dBm0 for frequencies greater than 100 Hz. For 100 Hz and below, the level should

be –10 dBm0. The output signal magnitude at any other frequency is smaller than the maximum value specified.

3. The quantization errors inherent in the µ/A-law companding process can generate slightly worse gain tracking

performance in the signal range of 3 to –37 dB for signal frequencies that are integer divisors of the 8 kHz PCM

sampling rate.

coefficients.

5. The level of any unwanted tones within the bandwidth of 0 to 4 kHz does not exceed –55 dBm.