Accessories Electric Specifications

Table 23: HDC-5 Electrical Specifications

Min

Typ

Max

Comment

Impedance, Transmitting

1540 qn

2200 qn

2860 on

MIC Bias

2.1 V

HDC-5 microphone current

400 |A

Impedance, Receiving

112 qn

150 qn

188 on

HDC-5 button closed resistor

2 x 22 qn

±±50/0

(Experiences have shown that a decrease of HS-rnic current from 500to 400 |A is needed in order to have safe margins.)

(Experiences have shown that a decrease of HS-rnic current from 500to 400 |A is needed in order to have safe margins.)

Table 24: PPH-1 Electrical Specifications

Min

Typ

Max

Comment

XMICP

60 mV RMS

350 mV RMS

Signal Level

1 Vpp

Max. Signal Level

100 Q

Accessory Source Impedance

2.095 VDC

2.182 VDC

2.269 VDC

Wxternal mic. detection.

2.519 VDC

2.603 VDC

2.687 VDC

Internal mic. detection.

1.840 Vue

Accesoty muted.

XMICN

60 mV RMS

350 mV RMS

Signal level.

1 VPP

Max. signal level.

100 Q

Accessory Source Impedance.

XEARP

60 mV RMS

300 mV RMS

Signal level.

47 Q

Output AC Impedance.

850 mVpp

Max output level.

6.8 kQ

Resistance to XEARN

XEARN

60 mV RMS

300 mV RMS

Signal level.

47 Q

Output AC Impedance.

850 mVpp

Max output level.

6.8 kQ

Resistance to XEARP

GND

-0.4 VDC

-0.2 VDC

0 VDC

VDC compared to phone GND.

600 mADC

750 mADC

V_CHARGER

8 VDC

Charging voltage.

Table 24: PPH-1 Electrical Specifications

600 mADC

750 mADC

Charging current.

100 mVpp

Ripple f=2O-2OO Hz.

20 mVpp

Ripple f = O.2-3O kHz.

100 mVpp

Ripple f > 3O kHz.

200 mVpp

Total ripple f > 2O Hz.

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