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Automatic RF MESFET Amplifier
Drain-Current Controllers
Appendix:
Startup Code Example
Below is a sample startup code for the MAX11014.
This code ensures clean startup of the part irrespec-
tive of power supply ramp speed and starts the device
regulating to 312.5mV on both channels. Change the
THRUDAC_ writes to change the voltage across the
sense resistor. Note it should be ran after the power
supplies have stabilized. A PGA calibration can be run,
but is not required for the part to function.
REGISTER
MNEMONIC
SHUT
SHUT
SCLR
SCLR
SCLR
SCLR
FLAG
SHUT
SHUT
HCFG
THRUDAC1
THRUDAC2
PGACAL
ALMHCFG
REGISTER
ADDRESS (hex)
0x64
0x64
0x74
0x74
0x74
0x74
0xF6
0x64
0x64
0x38
0x4A
0x4E
0x5E
0x3C
CODE WRITTEN
0x0000
0x0000
0x0020
0x0040
0x0020
0x0040
0x0000
0x0000
0x004F
0x7FF
0x7FF
0x0002
0x0014
NOTES
Removes the global power-down.
Powers up all parts of the MAX11014.
Arms the full reset.
Completes the full reset.
Arms the full reset.*
Completes the full reset.*
Read of FLAG register to verify reset good. Code should read
0xX042 if reset good.
Removes the global power-down.
Powers up all parts of the MAX11014.
Sets internal references for both DAC and ADC.
Midscale on DAC1, sets sense voltage to 312.5mV.
Midscale on DAC2, sets sense voltage to 312.5mV.
Completes tracking CAL (wait for BUSY to fall).
Releases GATE clamps and regulation begins.
*Note double reset. This ensures that the internal ROM is reset correctly after power-up and that the ROM data is latched correctly
irrespective of the power-supply ramp speed.
Package Information
For the latest package outline information and land patterns, go
to www.maxim-ic.com/packages .
PACKAGE TYPE
48 TQFN-EP
PACKAGE CODE
T4877-6
DOCUMENT NO.
21-0144
______________________________________________________________________________________
69
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MAX11015BGTM 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Automatic RF MESFET Amplifier Drain-Current Controllers
MAX11015BGTM+ 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Automatic RF MESFET Amplifier Drain-Current Controllers
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