pmb2708 Infineon Technologies Corporation, pmb2708 Datasheet

pmb2708

Manufacturer Part Number

pmb2708

Description

Co-processor Advanced Features Gold-sx

Manufacturer

Infineon Technologies Corporation

Datasheet

1.PMB2708.pdf (1 pages)

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GSM Co-Processor for Advanced Features (GOLD-SX)

General Description

The GOLD-SX is part of a complete chip set which covers all

functions of a mobile radio for the Global System for Mobile

communications, GSM. A mobile terminal which contains this

chip set can meet all performance requirements set down in

the Technical Specifications for GSM, PCN and PCS-1900.

GOLD-SX is used for advanced features. The function of the

GOLD-SX is dependent on its firmware.

The first version of the GOLD-SX performs Half-Rate speech

encoding including Voice Activity Detection (VAD) and

Discontinuous Transmission (DTX), as well as Half-Rate

speech decoding including Discontinuous Reception (DRX,

Comfort Noise).

The second version performs Enhanced Full-Rate speech

coding including all the DTX functions as in Half-Rate speech

coding.

Features

Firmware:

The GOLD-SX is available in two versions with different mask

programmed ROM code:

• Half-Rate Codec (GOLD-SXH):

Siemens Aktiengesellschaft

– GSM Half-Rate Speech Codec

– Voice activity detection, VAD (GSM 6.42)

– Discontinuous transmission, DTX (GSM 6.41)

– Comfort noise generation, DRX (GSM 6.22)

Block Diagram

(GSM 6.02, 6.06, 6.07, 6.20)

PLL Clock Unit

XRAM

39 MHz

2 K

Processor

Signal

Core

YRAM

2 K

13 MHz

9.75 MHz

6.5 MHz

to GOLD-SP to DAI Test Box

Prog.

ROM

12 K

SIF 1

Type

PMB 2708_1-F (GOLD-SXH) P-TQFP-64-1 (SMD)

PMB 2708_2-F (GOLD-SXE) P-TQFP-64-1 (SMD)

• Enhanced Full-Rate Codec (GOLD-SXE):

Hardware:

• DSP core of type SPCE (Siemens Signal Processor Core

• 12 K Program ROM and 0.25 K RAM, 8 K Data ROM

• PLL-based clock generation (13-MHz input)

• Package: P-TQFP-64, 10

• 3-V supply voltage ( 10 %)

– Serial data exchange with Half-Rate Channel Codec

– Serial data exchange with system simulator interfacing

– GSM Enhanced Full-Rate Codec (GSM 6.51, 6.53,

– Voice activity detection, VAD (GSM 6.82)

– Discontinuous transmission, DTX (GSM 6.81)

– Comfort noise generation, DRX (GSM 6.62)

– Serial data exchange with Enhanced Full-Rate Channel

– Serial data exchange with system simulator interfacing

Enhanced) offering high performance

(39 MIPS @ 39 MHz, 2.7 V) and current consumption

(approx. 1.3 mA/MIPS)

on-chip

and voiceband unit on GOLD-SP

box (GSM 11.10)

6.54, 6.60)

Codec and voiceband unit on GOLD-SP

box (GSM 11.10)

Data

0.25 K

Prog.

RAM

SIF 2

Bound.

Select

ROM

Scan

Data

Test

8 K

Program

ITB08488

10 mm

Package

, 0.50 mm pitch

PMB 2708

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