参数资料
型号: TMX20F2810PBKAEP
厂商: Texas Instruments, Inc.
元件分类: 数字信号处理
英文描述: Digital Signal Processors
中文描述: 数字信号处理器
文件页数: 21/159页
文件大小: 2084K
代理商: TMX20F2810PBKAEP
Introduction
21
March 2004 Revised October 2004
SGUS051A
Table 22. Signal Descriptions
(Continued)
NAME
DESCRIPTION
PU/PD§
I/O/Z
PIN NO.
176-PIN
PGF
128-PIN
PBK
179-PIN
GHH
ADC ANALOG INPUT SIGNALS (CONTINUED)
9
I
ADCINB7
F5
9
ADCINB6
D1
8
8
I
ADCINB5
D2
7
7
I
ADCINB4
D3
6
6
I
8-Channel Analog Inputs for Sample-and-Hold B. The ADC
pins should not be driven before the VDDA1, VDDA2, and
VDDAIO pins have been fully powered up.
ADCINB3
C1
5
5
I
ADCINB2
B1
4
4
I
ADCINB1
C3
3
3
I
ADCINB0
C2
2
2
I
ADCREFP
E2
11
11
I/O
ADC Voltage Reference Output (2 V). Requires a low ESR
(50 m
1.5
) ceramic bypass capacitor of 10
μ
F to analog
ground. (Can accept external reference input (2 V) if the
software bit is enabled for this mode. 110
μ
F low ESR
capacitor can be used in the external reference mode.)
ADCREFM
E4
10
10
I/O
ADC Voltage Reference Output (1 V). Requires a low ESR
(50 m
1.5
) ceramic bypass capacitor of 10
μ
F to analog
ground. (Can accept external reference input (1 V) if the
software bit is enabled for this mode. 110
μ
F low ESR
capacitor can be used in the external reference mode.)
ADCRESEXT
F2
16
16
O
ADC External Current Bias Resistor (24.9 k
±5%
)
Test Pin. Reserved for TI. Must be left unconnected.
ADCBGREFIN
E6
164
116
I
AVSSREFBG
E3
12
12
I
ADC Analog GND
AVDDREFBG
E1
13
13
I
ADC Analog Power (3.3-V)
ADCLO
B3
175
127
I
Common Low Side Analog Input. Connect to analog ground.
VSSA1
VSSA2
F3
15
15
I
ADC Analog GND
C5
165
117
I
ADC Analog GND
VDDA1
VDDA2
VSS1
VDD1
VDDAIO
VSSAIO
Typical drive strength of the output buffer for all pins is 4 mA except for TDO, XCLKOUT, XF, XINTF, EMU0, and EMU1 pins, which are 8 mA.
I = Input, O = Output, Z = High impedance
§PU = pin has internal pullup; PD = pin has internal pulldown
F4
14
14
I
ADC Analog 3.3-V Supply
A5
166
118
I
ADC Analog 3.3-V Supply
C6
163
115
I
ADC Digital GND
A6
162
114
I
ADC Digital 1.8-V (or 1.9-V) Supply
B2
1
1
3.3-V Analog I/O Power Pin
A2
176
128
Analog I/O Ground Pin
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