MB86437 Datasheet, PDF (14/35 Pages) Fujitsu Component Limited. – 3 V Single Power Supply Audio Interface Unit (AIU)

MB86437
(6) CODEC I/O
Code companding for µ-law and A-law is in accordance with CCITT Recommendation G.711.
Linear coding uses 14-bit, two's complement code which is output MSB-first.
Address 01111 is used to control µ-law, A-law, and linear code I/O.
SYNC
Din, Dout
MSB
12
11
10
1
LSB
MSB
Table 4 Table of Linear Code vs. Voltage
Code
LSB
PTBO Standard Voltage (V)
011111 11111111
to
000000 00000001
000000 00000000
111111 11111111
to
100000 00000001
2.2647
to
1.5009
1.5000
1.4991
to
0.7354
(7) Parallel output
LO0 to 3 are general-purpose latch outputs for external control. LO0 to 3 output the data written to address 01000.
The outputs are CMOS outputs. Data output continues during power-down.
Address 01000
D3 D2 D1 D0
LO0
LO1
LO2
LO3
(Inside IC)
14