PEB3264FV1.4 Infineon Technologies, PEB3264FV1.4 Datasheet - Page 23

• Manufacturer Part Number: PEB3264FV1.4
• Description: Telecom Line Management ICs CODEC & SLIC
• Manufacturer: Infineon Technologies

Specifications of PEB3264FV1.4

• Product: SLIC
• Supply Voltage (max): 5.25 V, 45 V, 90 V
• Supply Voltage (min): 4.75 V, 5 V
• Supply Current: 70 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Number Of Channels: 2
• Package / Case: TQFP-64
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Preliminary
Table 2
13
14
15
In the event of pauses < 20 ms:
• If the pause is followed by a tone pair with the same frequencies as before, this is
• If the pause is followed by a tone pair with different frequencies and if all other
DTMF decoders can be switched on or off individually to reduce power consumption. In
normal operation, the decoder monitors the Tip and Ring wires via the ITAC pins
(transmit path). Alternatively the decoder can be switched also in the receive path. On
detecting a valid DTMF tone pair, the SLICOFI-2 generates an interrupt via the
appropriate INT pin and indicates a change of status. The DTMF code information is
provided by a register which is read via the digital interface.
The DTMF decoder also has excellent speech-rejection capabilities and complies with
Bellcore TR-TSY-000763. The algorithm has been fully tested with the speech sample
sequences in the Series-1 Digit Simulation Test Tapes for DTMF decoders from
Bellcore.
Data Sheet
interpreted as drop-out.
conditions are valid, this is interpreted as two different numbers.
Characteristic
Interference rejection
30 Hz to 480 Hz for valid DTMF
recognition
Gaussian noise influence
Signal level – 22 dBm0,
SNR = 23 dB
Pulse noise influence
Impulse noise tape 201
Performance Characteristics of the DTMF Decoder Algorithm (cont’d)
23
Value
Level in frequency
range 30 Hz … 480 Hz
frequency + 22 dB
Error rate better than
1 in 10000
Error rate better than
14 in 10000
level of DTMF
Functional Description
SLICOFI-2/-2S/-2S2
Notes
dB referenced to
lowest amplitude
tone
–
–
2000.04.20