SM320F2812-HT Datasheet, PDF (21/155 Pages) Texas Instruments – Digital Signal Processor

SM320F2812-HT
www.ti.com
SGUS062A – JUNE 2009 – REVISED APRIL 2010
NAME
ADCINA7
ADCINA6
ADCINA5
ADCINA4
ADCINA3
ADCINA2
ADCINA1
ADCINA0
ADCINB7
ADCINB6
ADCINB5
ADCINB4
ADCINB3
ADCINB2
ADCINB1
ADCINB0
ADCREFP
ADCREFM
ADCRESEXT
ADCBGREFIN
AVSSREFBG
AVDDREFBG
ADCLO
V_SSA1
V_SSA2
V_DDA1
V_DDA2
V_SS1
V_DD1
V_DDAIO
V_SSAIO
PIN NO.
172-PIN
HFG
163
164
165
166
167
168
169
170
9
8
7
6
5
4
3
2
11
10
16
160
12
13
171
15
161
14
162
159
158
1
172
Table 2-3. Signal Descriptions ⁽¹⁾ (continued)
DIE PAD
NO.
186
188
190
192
194
196
197
198
13
11
10
8
6
4
3
2
15
14
22
180
17
18
199
21
182
19
184
178
177
1
200
DIE PAD
X-CENTER
(mm)
DIE PAD
Y-CENTER
(mm)
I/O/Z⁽²⁾ PU/PD⁽³⁾
DESCRIPTION
ADC ANALOG INPUT SIGNALS
42.6
1253.9
I
42.6
1094.3
I
42.6
954.0
I
42.6
794.4
I
42.6
654.1
I
42.6
513.9
I
42.6
434.1
I
42.6
354.3
I
1355.2
42.6
I
1164.6
42.6
I
1069.2
42.6
I
878.6
42.6
I
688.0
42.6
I
497.4
42.6
I
402.1
42.6
I
306.8
42.6
I
1545.8
42.6
O
1450.5
42.6
O
2212.9
42.63
O
42.6
1680.9
I
1831.7
42.6
I
1736.4
42.6
I
42.6
274.5
I
2117.6
42.6
I
42.6
1550.7
I
1927.0
42.6
I
42.6
1394.2
I
42.6
1830.8
I
42.6
1901.0
I
211.5
42.6
42.6
204.3
Eight-channel analog inputs for
Sample-and-Hold A. The ADC pins should
not be driven before V_DDA1, V_DDA2, and
V_DDAIO pins have been fully powered up.
Eight-channel analog inputs for
Sample-and-Hold B. The ADC pins should
not be driven before the V_DDA1, V_DDA2, and
V_DDAIO pins have been fully powered up.
ADC Voltage Reference Output (2 V).
Requires a low ESR (50 mΩ – 1.5 Ω)
ceramic bypass capacitor of 10 mF to
analog ground. (Can accept external
reference input
(2 V) if the software bit is enabled for this
mode. 1-mF to 10-mF low ESR capacitor
can be used in the external reference
mode.)
ADC Voltage Reference Output (1 V).
Requires a low ESR (50 mΩ – 1.5 Ω)
ceramic bypass capacitor of 10 mF to
analog ground. (Can accept external
reference input
(1 V) if the software bit is enabled for this
mode. 1-mF to 10-mF low ESR capacitor
can be used in the external reference
mode.)
ADC External Current Bias Resistor
(24.9 kΩ ±5%)
Test Pin. Reserved for TI. Must be left
unconnected.
ADC Analog GND
ADC Analog Power (3.3 V)
Common Low Side Analog Input. Connect
to analog ground.
ADC Analog GND
ADC Analog GND
ADC Analog 3.3-V Supply
ADC Analog 3.3-V Supply
ADC Digital GND
ADC Digital 1.8-V (or 1.9-V) Supply
3.3-V Analog I/O Power Pin
Analog I/O Ground Pin
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Introduction
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