MAX11014_08 Datasheet, PDF (14/70 Pages) Maxim Integrated Products – Automatic RF MESFET Amplifier Drain-Current Controllers

Automatic RF MESFET Amplifier
Drain-Current Controllers
Pin Description
PIN
1
2
3
4
5
6
7
8
9
10
11, 27
12, 26
13
14
15
16, 28, 29,
34–37
17
18
19
20
21
22
23
24
25
NAME
DIN/SDA
DOUT/A1
ADCIN1
ADCIN2
DXN1
DXP1
DXN2
DXP2
REFDAC
REFADC
AV_DD
AGND
ACLAMP2
GATE2
GATEV_SS
FUNCTION
Serial Data Input. Data is latched into the serial interface on the rising edge of SCLK in SPI mode.
Connect a pullup resistor to SDA in I²C mode.
Serial Data Output in SPI Mode/Address Select 1 in I²C Mode. Data transitions on the falling edge of
SCLK. DOUT is high impedance when CS is high. Connect A1 to DV_DD or DGND to set the device
address to I²C mode.
Analog Input 1
Analog Input 2
Remote-Diode Current Sink. Connect the emitter of a base-emitter junction remote npn transistor to
DXN1.
Remote-Diode Current Source. Connect DXP1 to the base/collector of a remote temperature-sensing
npn transistor. Do not leave DXP1 open; connect to DXN1 if no remote diode is used.
Remote-Diode Current Sink. Connect the emitter of a base-emitter junction remote npn transistor to
DXN2.
Remote-Diode Current Source. Connect DXP2 to the base/collector of a remote temperature-sensing
npn transistor. Do not leave DXP2 open; connect to DXN2 if no remote diode is used.
DAC Reference Input/Output. Connect a 0.1µF capacitor to AGND in external reference mode. See
the HCFG (Read/Write) section.
ADC Reference Input/Output. Connect a 0.1µF capacitor to AGND in external reference mode. See
the HCFG (Read/Write) section.
Positive Analog Supply Voltage. Set AV_DD between +4.75V and +5.25V. Bypass with a 1µF and a
0.1µF capacitor in parallel to AGND.
Analog Ground
MESFET2 External Clamping Voltage Input
MESFET2 Gate Connection. See the Gate-Drive Amplifiers section.
Gate-Drive Amplifier Negative Power-Supply Input. Set GATEV_SS between -4.75V and -5.5V. Connect
externally to AV_SS. Bypass with a 1µF and a 0.1µF capacitor in parallel to AGND.
N.C.
No Connection. Not internally connected.
ACLAMP1
GATE1
FILT1
FILT2
FILT3
FILT4
PGAOUT1
PGAOUT2
AV_SS
MESFET1 External Clamping Voltage Input
MESFET1 Gate Connection. See the Gate-Drive Amplifiers section.
Channel 1 Filter 1 Input. See Figures 5 and 6.
Channel 1 Filter 2 Input. See Figures 5 and 6.
Channel 2 Filter 3 Input. See Figures 5 and 6.
Channel 2 Filter 4 Input. See Figures 5 and 6.
Channel 1 Amplifier Voltage Output. See the PGAOUT Outputs section and Figures 5 and 6.
Channel 2 Amplifier Voltage Output. See the PGAOUT Outputs section and Figures 5 and 6.
Negative Analog Supply Voltage. Set AV_SS between -4.75V and -5.5V. Connect externally to
GATEV_SS. Bypass with a 1µF and a 0.1µF capacitor in parallel to AGND.
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