Dual-Channel High-Power RF Driver MQH0XX-YYDM-ZZZ-2S

The MQH0XX-YYDM-ZZZ-2S is a dual-channel high-power RF driver covering24–110 MHz, providing dual-channel RF output up to100 W into50 Ω with analog and digital modulation. Designed for acousto-optic Q-switches, it provides stable, reliable drive for high-power pulsed lasers. Two digital inputs support fixed-width and variable-width modes. Analog input adjusts RF power. ZZZ selects A05 (standard analog control), R05 (analog control switched to full RF output), FPS (first-pulse suppression), or PPK (prepulse elimination). Frequency XX, power YY, and control mode ZZZ are factory configured to order. Forced-air cooling supports continuous high-power operation and long-term reliability. Fixed-width pulses are set by an adjustable internal circuit; variable-width pulses follow the external input for synchronization. Applicable devices:dual-head water-cooled Q-switches. Both RF outputs must be connected to50 Ω loads. Factory-set modes table:FPS |First-Pulse Suppression;PPK |Prepulse Elimination;A05 |Analog Control;R05 |RF Switching to Analog Control;Dash |Digital Modulation Only. Interfaces:RF Output |BNC Female;Power |Vcc Solder Post;Return |Ground Terminal. Front-Panel25-Pin D-Sub:Pin1 |+5V External Fault-Indicator Supply, Maximum75 mA;Pin12 |MOD IN ANALOG (A05/R05);Pins2-3 |NC;Pin13 |FAULT RESET, Low Pulse to Reset, Must Not Be Held Low;Pin4 |THERM RTN, Common Return for THERM and THERM2;Pin14 |FPS TRG, Rising Edge;Pin5 |THERM2, Fault unless Grounded;Pin15 |MOD IN FIXED, RF Off for Set Width;Pin6 |THERM, Fault unless Grounded;Pin16 |MOD IN VARIABLE, RF Off while High;Pin7 |DRV TEMP, Normally High, Low when Overheated;Pin17 |SYNC OUT;Pin8 |QS TEMP, Low when THERM Is Not Grounded;Pins18-19 |NC;Pin9 |HVSWR, Normally High, Low on Fault;Pin20 |SHUTTER, Opens0.3 s after Fault, Maximum Sink1 A @28 V;Pin10 |LP, Low below Low-Power Threshold;Pins21-24 |NC;Pin11 |HP, Normally High, Low on Fault;Pin25 |GND. Front-Panel Indicators:Power |DC28 V On;Low Power |Warning after0.3 s below LP Threshold, Clears Automatically above Threshold;High Power |Fault above HP Threshold, Reset Required after Fault Removal;High VSWR |Fault above Reflected-Power Threshold, Reset Required after Fault Removal;Q-Switch Temperature |Open-Circuit Fault, Clears when Temperature Circuit Closes below Set Temperature;Driver Temperature |Overtemperature Protection at60 ℃, Recovers after Cooling. Adjustments:RF Power |Adjust Output;Low-Power Threshold |Below it the indicator illuminates while RF continues, as a warning without protective shutdown. High-Power Threshold |Stops Output above Threshold until Fault Reset. VSWR Threshold |Stops Output on Excess Reflection from Mismatch, Reset Required after Fault Removal. Pulse Width |Fixed-Modulation RF-Off Time,1～14 μs. The following does not apply to FPS/PPK configurations:Threshold |Below the effective analog-input threshold, the analog signal is ignored and RF output disabled. The following does not apply to analog-input A05/R05 configurations:First-Pulse Initial Power |Sets Initial RF Pulse;Recovery Slope |Sets Return to Normal Power after FPS,20 μs～300 μs;Suppression Window |20 μs～300 μs. Maximum-Ratings Note:DC feedback is prohibited at RF output. Ordering text labels this 'Output Frequency:Factory Set';YY =50 W (24/27/41 MHz), Adjustable Range12–25 W;ZZZ =Mode, see options table.

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