Si32172/3/5

6

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

Rev. 1.0 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 31, 2021

Signal-to-(Noise + Distortion)

Ratio2

200Hz to 3.4kHz

D/A or A/D 8-bit

Active off-hook, and OHT, any ZT

Figure 2

—

—

Audio Tone Generator Signal-to-

Distortion Ratio2

0 dBm0, Active off-hook, and

OHT, any ZT

46

—

—

dB

Intermodulation Distortion

—

—

–41

dB

Gain Accuracy2

2-Wire to PCM or PCM to 2-Wire

1014 Hz, Any gain setting

–0.2

—

0.2

dB

Attenuation Distortion vs.

Frequency

0dBm06

See Figure 16 and 17

Group Delay vs. Frequency

See Figure 18 and 19

Gain Tracking3

1014 Hz sine wave,

reference level –10 dBm

Signal level:

——

—

—

3 dB to –37 dB

—

—

0.25

dB

–37 dB to –50 dB

—

—

0.5

dB

–50 dB to –60 dB

—

—

1.0

dB

Round-Trip Group Delay

1014 Hz, Within same time-slot

—

450

500

µs

2-Wire Return Loss4

200Hz to 3.4kHz

26

30

—

dB

Transhybrid Balance4

300Hz to 3.4kHz

26

30

—

dB

Noise Performance

Idle Channel Noise5

C-Message weighted

—

8

12

dBrnC

Psophometric weighted

—

–82

–78

dBmP

PSRR from VDD, VDDIO @ 3.3 V

RX and TX, 200 Hz to 3.4 kHz

—

55

—

dB

Longitudinal Performance

Longitudinal to Metallic/PCM

Balance (forward or reverse)

200Hz to 1kHz

58

60

—

dB

1kHz to 3.4kHz

53

58

—

dB

Metallic/PCM to

Longitudinal Balance

200 Hz to 3.4 kHz

40

—

—

dB

Longitudinal Impedance

200 Hz to 3.4 kHz at TIP or RING

—

50

—



Longitudinal Current Capability

Active off-hook 60 Hz

Reg 73 = 0x0B

—25

—

mA

Table 3. AC Characteristics for FXS (Continued)

TA = 0 to 70 °C (F grade) or –40 to +85 °C (G grade) unless otherwise noted.

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.

2. Analog signal measured as VTIP – VRING. Assumes ideal line impedance matching.

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.

4. VDD, VDDIO =3.3 V, VBAT = –52 V, no fuse resistors; RL = 600 , ZS = 600  synthesized using RS register

coefficients.

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

6. 0 dBm 0 is equal to 0 dBm into 600



.