参数资料
型号: TMP320R2812GHHS
厂商: Texas Instruments, Inc.
元件分类: 数字信号处理
英文描述: TMS320R2811, TMS320R2812 Digital Signal Processors
中文描述: TMS320R2811,TMS320R2812数字信号处理器
文件页数: 22/147页
文件大小: 2021K
代理商: TMP320R2812GHHS
Introduction
22
June 2004
SPRS257
Table 2
2. Signal Descriptions
(Continued)
NAME
DESCRIPTION
PU/PD
§
I/O/Z
PIN NO.
128-PIN
PBK
176-PIN
PGF
179-PIN
GHH
AND
ZHH
ADC ANALOG INPUT SIGNALS (CONTINUED)
9
I
8
I
7
I
6
I
5
I
4
I
3
I
2
I
ADCINB7
ADCINB6
ADCINB5
ADCINB4
ADCINB3
ADCINB2
ADCINB1
ADCINB0
F5
D1
D2
D3
C1
B1
C3
C2
9
8
7
6
5
4
3
2
8-Channel Analog Inputs for Sample-and-Hold B. The ADC
pins should not be driven before the V
DDA1
, V
DDA2
, and
DDAIO
V
pins have been fully powered up.
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. 1
10
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. 1
10
μ
F low ESR
capacitor can be used in the external reference mode.)
ADC External Current Bias Resistor (24.9 k
±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
ADCRESEXT
ADCBGREFIN
AVSSREFBG
AVDDREFBG
ADCLO
V
SSA1
V
SSA2
F2
E6
E3
E1
B3
F3
C5
16
164
12
13
175
15
165
16
116
12
13
127
15
117
O
I
I
I
I
I
I
V
DDA1
V
DDA2
V
SS1
V
DD1
V
DDAIO
V
SSAIO
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
A5
C6
A6
B2
A2
14
166
163
162
1
176
14
118
115
114
1
128
I
I
I
I
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
A
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