User's Manual

APPLICANT: MOTOROLA, INC. FCC ID: IHDT6AC1
Exhibit 8
38
Audio out
Audio In
D15
Headset
A1
A2
Analog GND
REF
VCC Vref
SPKR
MIC
Hands Free
Selection via
ATS96 command.
Hands Free
Selection
Hands Free
Selection
(for Audio amp)
VCC
12V
The requirements from the drivers and audio devices are the
follow:
Microphone impedance: Typical 700Ω
S/N ratio Minimum 35dB
Gain from headset to D15 (A2) 45 – 49 dB
Frequency response -11 to +1 dB 300 to 3400Hz.
(including microphone)
D15 input impedance 10KΩ
TX Distortion Maximum 5%.
Speakerphone Load 25 to 39W.
S/N Minimum 35dB
Gain from D15 to Headset (A1) -13 to –9 dB
Frequency response -10 to +1 dB 300 to 3400Hz.
(including SPKR)
D15 output impedance <1KΩ
Distortion Maximum 5%.