PSB 2132 H V2.2 Infineon Technologies, PSB 2132 H V2.2 Datasheet - Page 34

• Manufacturer Part Number: PSB 2132 H V2.2
• Description: IC CODEC FILTER 2CHAN MQFP-64
• Manufacturer: Infineon Technologies
• Series: SICOFI®r

Specifications of PSB 2132 H V2.2

• Package / Case: 64-QFP
• Function: CODEC Filter
• Interface: IOM-2 PCM, SPI
• Number Of Circuits: 2
• Voltage - Supply: 5V
• Current - Supply: 18mA
• Power (watts): 90mW
• Mounting Type: Surface Mount
• Includes: Level Metering Function, Tone Generation
• Number Of Adc Inputs: 2
• Number Of Dac Outputs: 2
• Interface Type: Serial
• Operating Supply Voltage: 5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Number Of Channels: 2
• Snr: 35.4 dB
• Supply Current: 40 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: PSB2132HV2.2XT; SP000007696

Hardware Reference Manual
5
The SICOFI
• Analog Interface,
• IOM-2 PCM Interface,
• Signaling Interface, and
• Serial Microcontroller Interface.
A general description of these interface is given in the Product Overview, Chapter 4.
Refer to the Programmers Reference Manual for information on the configuration and
operation of the four interfaces.
The subsequent chapters in this manual explain how to connect the SICOFI
subscriber line interface circuits (SLICs), microcontrollers, and IOM-2 Interface.
5.1
The Analog Interface in combination with a Subscriber Line Interface Circuit (SLIC)
forms a configurable tip/ring (t/r) telephone line. The AC transmission characteristic of
the SICOFI
structures inside the SICOFI
targeted AC transmission behavior (e.g. Telco specification) and by the transfer
functions of the SLIC.
The SICOFI
The high driving capability of up to 300 Ohms eliminates the need for an external
amplifier that is normally used with transformer SLICs.
The peak amplitude of the analog inputs and outputs is at 2.223 V (overload point).
Out-of-band signals applied to the analog inputs are suppressed by the on-chip digital
hardware filters. The poles of these filters are fixed at 12 kHz and 16 kHz which
suppresses the echo signal from teletax pulses very efficiently: As long as the amplitude
of the teletax echo stays below the overload threshold of 2.223 Vp (1.57 Vrms), the voice
signal in the transmit path will not be disturbed. Thus, the on-chip hardware filters can
eliminate the need for external teletax filters.
5.1.1
A coupling capacitor >39 nF must be used on the V
required value for the coupling capacitor on the V
resistance of the SLIC-circuitry (R
response requirement in the receive direction. Figure 14 can be used to determine an
appropriate value for the coupling capacitor (C
®
Interface Description
Analog Interface
Coupling Capacitors at the Analog Interface
®
®
2-TE—SLIC combination can be controlled by programming the digital filter
2-TE can be interfaced directly to electronic SLICs or transformer solutions.
2-TE provides four interfaces:
®
2-TE. The correct filter coefficients are determined by the
Load
). It has to be chosen to fulfil the frequency
25
Ext1
).
IN
-pins in the transmit direction. The
OUT
-pins depends on the input
Interface Description
PSB 2132
2001-02-20
®
2-TE to