參數(shù)資料
型號(hào)： TLV5630EVM
廠商： Texas Instruments, Inc.
英文描述： TLV5630 Evaluation Module(TLC5630評(píng)估板)
中文描述： TLV5630評(píng)估模塊（TLC5630評(píng)估板）
文件頁(yè)數(shù)： 20/32頁(yè)
文件大?。?/td> 395K
代理商： TLV5630EVM
Standalone Testing
3-2
3.1
Standalone Testing
Connect a positive DC source of 3.3 to 5 volts to the EVM at connector J1–1
referenced to J1–2. LED indicators D1 and D3 should illuminate, indicating
that power is applied to the board, and the EVM is in test mode.
3.1.1
Test Mode—Factory Defaults
Jumpers W10, W12, and W14 are open. This allows the serial data and frame
sync signals to be directed to each data converter. Frame sync is automatically
generated and occurs every sixteenth clock cycle. Trim potentiometers R3 and
R4 are set to provide U3 and U5 with 2.048V, while trim potentiometer R36
provides U4 with 4.096 V.
Switch banks SW1 through SW4 are located along the bottom edge of the
EVM. These switches are factory set to provide the digital-to-analog
converters with hex word 0x0800. This word translates to half-scale output on
channel 0 of each converter, and can be seen on pin 1 of connectors J3 (U5),
J2 (U3), and J4 (U4).
3.1.2
Test Mode—TLV5604/14
Closing jumpers W10 and W12 allows independent testing of the four-channel
data converter at U5.
Switch bank SW4 is used for channel selection, power down, and conversion
speed. Selection of channels 0 through 4 requires the setting/clearing of bits
D15 and D14. Setting bit D13 will put the data converter in power-down mode.
Setting bit D12 will choose fast conversion mode. Switch banks SW3, SW2,
and SW1 provide the digital input to the converter.
TLV5604/14 Register Configuration:
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
A0
A1
PWR
SPD
DAC Value
Channel Selection:
A1
A0
DAC/Output Connector
0
0
OUT A / J3–1
0
1
OUT B / J3–3
1
0
OUT C / J3–5
1
1
OUT D / J3–7
Power and Speed Selection:
D13 – PWR
D12 – SPD
Function
0
X
Normal Operation
1
X
Power Down Mode
X
0
Slow conversion mode
X
1
Fast conversion mode
DAC Output Value:
Vout = 2Vref CODE/0x1000
Data bits D11 through D0 set the digital input value to be converted. Each bit
can be set independently by sliding the appropriate switch to the on position
(towards the middle of the EVM). Data is presented to the converter MSB first.
On the 10-bit TLV5604, data in locations D1 and D0 are ignored.
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