L9216G データシートの表示（PDF） - Agere -> LSI Corporation

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L9216G

Short-Loop Ringing SLIC with Ground Start

Agere -> LSI Corporation 

Preliminary Data Sheet

September 2001

L9216A/G

Short-Loop Ringing SLIC with Ground Start

Electrical Characteristics (continued)

Table 13. ac Feed Characteristics

Parameter

ac Termination Impedance1

Total Harmonic Distortion (200 Hz—4 kHz)2:

Off-hook

On-hook

Transmit Gain (f = 1004 Hz, 1020 Hz, current limit)3:

PT/PR Current to VITR

Receive Gain, f = 1004 Hz, 1020 Hz Open Loop:

RCVP or RCVN to PT—PR (gain of 8 option, L9216A)

RCVP or RCVN to PT—PR (gain of 2 option, L9216G)

Gain vs. Frequency (transmit and receive)2 600 Ω Termination,

1004 Hz, 1020 Hz Reference:

200 Hz—300 Hz

300 Hz—3.4 kHz

3.4 kHz—20 kHz

20 kHz—266 kHz

Gain vs. Level (transmit and receive)2 0 dBV Reference:

–55 dB to +3.0 dB

Idle-channel Noise (tip/ring) 600 Ω Termination:

Psophometric

C-Message

3 kHz Flat

Idle-channel Noise (VTX) 600 Ω Termination:

Psophometric

C-Message

3 kHz Flat

Min

Typ

Max

Unit

150

600

1400

Ω

—

—

0.3

%

—

—

1.0

%

300 – 3% 300 300 + 3% V/A

7.76

8

8.24

—

1.94

2

2.06

—

–0.3

0

–0.05

0

–3.0

0

—

—

–0.05

0

—

–82

—

8

—

—

—

–82

—

8

—

—

0.05

dB

0.05

dB

0.05

dB

2.0

dB

0.05

dB

–77

dBmp

13

dBrnC

20

dBrn

–77

dBmp

13

dBrnC

20

dBrn

1. Set externally either by discrete external components or a third- or fourth-generation codec. Any complex impedance R1 + R2 || C between

150 Ω and 1400 Ω can be synthesized.

2. This parameter is not tested in production. It is guaranteed by design and device characterization.

3. VITR transconductance depends on the resistor from ITR to VTX. This gain assumes an ideal 4750 Ω, the recommended value. Positive cur-

rent is defined as the differential current flowing from PT to PR.

Agere Systems Inc.

17

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