參數(shù)資料
型號: ADATE305BSVZ
廠商: Analog Devices Inc
文件頁數(shù): 41/56頁
文件大小: 0K
描述: IC DCL ATE 250MHZ DUAL 100TQFP
標(biāo)準(zhǔn)包裝: 1
類型: DCL
應(yīng)用: 自動測試設(shè)備
安裝類型: 表面貼裝
封裝/外殼: 100-TQFP 裸露焊盤
供應(yīng)商設(shè)備封裝: 100-TQFP-EP(14x14)
包裝: 托盤
ADATE305
Rev. 0 | Page 46 of 56
RECOMMENDED PMU MODE SWITCHING
SEQUENCES
To minimize any possible aberrations and voltage spikes on the
DUT output, specific mode switching sequences are
recommended for the following transitions:
PMU disable to PMU enable.
PMU force voltage mode to PMU force current mode.
PMU force current mode to PMU force voltage mode.
PMU Disable to PMU Enable
Note that in Table 39 through Table 49, X indicates the don’t care bit.
Step 1. Table 39 lists the state of the registers in PMU disabled mode.
Table 39.
Register
Bits
Setting
PE/PMU Enable Register, ADDR[4:0] = 0x0C
DATA[2]
0
PMU State Register, ADDR[4:0] = 0x0E
DATA[9:8]
XX
DATA[7]
X
DATA[6]
X
DATA[5]
X
DATA[4]
X
DATA[3]
X
DATA[2:0]
XXX
Step 2. Write to Register ADDR[4:0] = 0x0E (see Table 40).
Table 40.
Register
Bits
Setting
Comments
PMU State Register, ADDR[4:0] = 0x0E
DATA[9:8]
1X or 00
Set desired input selection
DATA[7]
X
DATA[6]
X
DATA[5]
X
DATA[4]
X
DATA[3]
0
This bit must be set to force voltage mode to reduce
aberrations
DATA[2:0]
XXX
Set desired range
Step 3. Write to Register ADDR[4:0] = 0x0C (see Table 41).
Table 41.
Register
Bits
Setting
Comments
PE/PMU Enable Register, ADDR[4:0] = 0x0C
DATA[2]
1
PMU is now enabled in force voltage mode
PMU Force Voltage Mode to PMU Force Current Mode
Step 1. Table 42 lists the state of registers in force voltage mode.
Table 42.
Register
Bits
Setting
PE/PMU Enable Register, ADDR[4:0] = 0x0C
DATA[2]
1
PMU State Register, ADDR[4:0] = 0x0E
DATA[9:8]
XX
DATA[7]
X
DATA[6]
X
DATA[5]
X
DATA[4]
X
DATA[3]
0
DATA[2:0]
XXX
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