TLC320AD545 Datasheet, PDF (9/37 Pages) Texas Instruments – Single Channel Data/Fax Codec

1.4 Terminal Assignments
DREFP_DAC
DREFM_DAC
NC
NC
DAV_DD
DAV_SS
NC
NC
DTRX_FB
DTRXM
NC
DTRXP
48 47 46 45 44 43 42 41 40 39 38 37
1
36
2
35
3
34
4
33
5
32
6
TLC320AD545
31
7
30
8
29
9
28
10
27
11
26
12
25
13 14 15 16 17 18 19 20 21 22 23 24
NC
NC
DT_MCLK
DT_DIN
DT_SCLK
DT_DOUT
DT_FS
NC
RESET
DV_SS
NC
NC
NC–Make no external connection
1.5 Ordering Information
TA
0°C to 70°C
–40°C to 85°C
PACKAGE
PLASTIC QUAD
FLATPACK (PT)
TLC320AD545PT
TLC320AD545IPT
1.6 Terminal Functions
TERMINAL
NAME
I/O
NO.
DESCRIPTION
NC
3, 4, 7, 8,
No connection
11, 21, 25,
26, 35, 36,
45
DAVDD
5
DAVSS
6
DREFM_ADC
48
I Analog power supply (5 V/3.3 V)
I Analog ground
O ADC voltage reference filter output. DREFM_ADC provides lowpass filtering for the internal bandgap
reference. The optimal ceramic capacitor value is 0.1 µF connected between DREFM_ADC and
DREFP_ADC. The nominal dc voltage at this terminal is 0 V.
DREFM_DAC
2
O DAC voltage reference filter output. DREFM_DAC provides for lowpass filtering the internal bandgap
reference. The optimal ceramic capacitor value is 0.1 µF connected between DREFM_ADC and
DREFP_ADC. The nominal dc voltage at this terminal is 0 V.
1–3