MH89625C
Preliminary Information
Table 1- Control of SLIC Functions through Codec 8 bit Register B
Codec Name
Bit
Description
(SLIC Name)
7, 6
CODEC
TESTING
CONTROL
Codec Testing Controls. Set bits to 0 for normal operation. For details of testing
functions, see the MT8967 integrated PCM Filter/Codec data sheet.
3
2
1
SD3
(RD4)
When logic ‘0’, SD3 goes to the open state which deactivates the internal relay
driver 4, RD4 output goes to the open state.
SD2
(RD3)
When logic ‘0’ SD2 goes to AGND which deactivates the internal relay driver 3,
RD3 output goes to the open state.
SD1
(RD2)
A logic ‘0’, SD1 goes to AGND which deactivates the internal relay driver 2, RD2
output goes to the open state.
A logic ‘1’, SD1 goes to VDD which activates the internal relay driver 2, RD2 output
goes to RGND.
0
SD0
(RD1)
A logic ‘0’, SD0 goes to AGND which deactivates the internal relay driver 1, RD1
output goes to the open state.
A logic ‘1’, SD0 goes to VDD which activates the internal driver 1, RD1 output goes
to RGND.
Table 2 - Modified Analog Gain* - Which when combined with CODEC gives 0dBm
Transmit (A/D)
Path
Receive (D/A)
Variant
Input Impedance
600R
Units
Path
MH89625C
MH89625C-5
MH89625C-6
4.02
2.72
3.26
-4.02
-2.72
-3.26
dB
dB
dB
200R + 680R // 0.1µF
200R + 560R // 0.1µF
* All with GS = High and A-Law CODEC (Mitel)
2-278
MITEL [ MITEL NETWORKS CORPORATION ]
