MC14LC5540 Datasheet, PDF (2/18 Pages) Motorola, Inc – ADPCM Codec

PIN ASSIGNMENT
28–LEAD PDIP, SOG
TG 1 •
TI – 2
TI + 3
VAG ₄
RO 5
AXO – 6
AXO + 7
VDSP 8
VEXT 9
PI 10
PO – 11
PO + 12
PDI/RESET 13
SCPEN ₁₄
28 ^VDD
27 ^FSR
26 BCLKR
25 DR
24 C1 +
23 C1 –
22 VSS
21 SPC
20 ^DT
19 BCLKT
18 FST
17 SCP Rx
16 SCP Tx
15 SCPCLK
32–LEAD TQFP
RO
NC
AXO–
AXO+
VDSP
NC
VEXT
PI
32 31 30 29 28 27 26 25
1
24
2
23
3
22
4
21
5
20
6
19
7
18
8
17
9 10 11 12 13 14 15 16
C1+
C1–
NC
VSS
NC
SPC
DT
BCLKT
BLOCK DIAGRAM
PO +
PO –
PI
RO
AXO –
AXO +
TG
TI –
TI +
VDD
VAG
VSS
CODEC–FILTER
–1
+
–
DAC
TRIM GAIN
Σ
AND FILTER
SIDETONE
GAIN
–
TRIM GAIN
+
AND FILTER
ADC
CHARGE–PUMP
DSP
ADPCM
TRANSCODER,
RECEIVE GAIN
AND
DUAL TONE
GENERATOR
DR
FSR
BCLKR
BCLKT
FST
DT
VDSP
SEQUENCE/
CONTROL
SPC
C1 +
C1 –
VEXT
PDI/RESET SCPEN SCP Rx
SCPCLK SCP Tx
MC14LC5540
2
MOTOROLA