Siemens ET7 Series Spezifikationen PDF herunterladen (Seite 37)

DSB75 Development Support Board Rev. B1 Hardware Description

Strictly confidential / Released

DSB75_hd_v08 Page 37 of 94 29.09.2005

3.6.2.2 Speakerphone Operation

The recommended speakerphones which are currently available for the audio interface 2 are

the “Siemens Car Kit Portable” and “Siemens Car Kit Portable HKP-500” (ordering number is

L36880-N5601-A109).

The plug of “Siemens Car Kit portable HKP-500” is

compatible to Lumberg connector X701.

The plug of “Siemens Car Kit Portable” is compatible to

Lumberg connector X700.

The required bias voltage for the MICP2 pin of the GSM

module has to be achieved by an additional 2.2-kOhm-

resistor (see chapter 3.6.3, description of microphone

interface 2).

Figure 16: Siemens Car Kit Portable HKP-500

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 93 94

Keine Kommentare

Siemens ET7 Series Spezifikationen Seite 37