diff --git a/include/si5351_driver.h b/include/si5351_driver.h
index 6424e05..76c9882 100644
--- a/include/si5351_driver.h
+++ b/include/si5351_driver.h
@@ -335,6 +335,7 @@ uint8_t cm_si5351_getRevisionNumber(si5351_driver *inst);
 int cm_setInputSource(si5351_driver *inst, si5351_ClkSource clk_source);
 int cm_setPLLParameters(si5351_driver *inst,si5351_PLLs sel_pll, uint32_t a, uint32_t b, uint32_t c);
 int cm_setOutputMultiSynth(si5351_driver *inst,si5351_Outputs clk_output, uint32_t d, uint32_t e, uint32_t f);
+int cm_setOutputMultiSynthRaw(si5351_driver *inst,si5351_Outputs clk_output, uint32_t MSx_P1, uint32_t MSx_P2, uint32_t MSx_P3);
 int cm_setOutputEnable(si5351_driver *inst,si5351_Outputs clk_output, si5351_Outputs_state outputState);
 int cm_setCLKControl(si5351_driver *inst, si5351_Outputs clk_output, si5351_CLK_PDN clk_pdn);
 int cm_resetPLLs(si5351_driver *inst, uint8_t reset_PLLA, uint8_t reset_PLLB);
diff --git a/si5351_driver.c b/si5351_driver.c
index 73b31b0..213866d 100644
--- a/si5351_driver.c
+++ b/si5351_driver.c
@@ -108,6 +108,53 @@ int cm_setPllParamRaw(si5351_driver *inst, si5351_PLLs sel_pll, uint32_t MSNx_P1
 	return 0;
 }
 
+int cm_setOutputMultiSynthRaw(si5351_driver *inst,si5351_Outputs clk_output, uint32_t MSx_P1, uint32_t MSx_P2, uint32_t MSx_P3){
+
+	switch(clk_output){
+
+		case SI5351_OUTPUT_0:
+		inst->device_data.multiSynth0Param.MSx_P1_17_16 = (MSx_P1 >> 16) & 0x3; // last division..
+		inst->device_data.multiSynth0Param.MSx_P1_15_8 = (MSx_P1 >> 8) & 0xff;
+		inst->device_data.multiSynth0Param.MSx_P1_7_0 = MSx_P1 & 0xff;
+
+		inst->device_data.multiSynth0Param.MSx_P2_19_16 = (MSx_P2 >> 16) & 0x3;
+		inst->device_data.multiSynth0Param.MSx_P2_15_8 = (MSx_P2 >> 8) & 0xff;
+		inst->device_data.multiSynth0Param.MSx_P2_7_0 = MSx_P2 & 0xff;
+
+		inst->device_data.multiSynth0Param.MSx_P3_19_16 = (MSx_P3 >> 12) & 0x3;
+		inst->device_data.multiSynth0Param.MSx_P3_15_8 = (MSx_P3 >> 8) & 0xff;
+		inst->device_data.multiSynth0Param.MSx_P3_7_0 = MSx_P3 & 0xff;
+
+		writeRegister(inst,SI5351_REG_MULTISYNTH_OUT_0, (uint8_t*) &inst->device_data.multiSynth0Param, sizeof(si5351_multiSynthxParameters_t));
+
+		break;
+		
+		case SI5351_OUTPUT_1:
+		inst->device_data.multiSynth1Param.MSx_P1_17_16 = (MSx_P1 >> 16) & 0x3; // last division..
+		inst->device_data.multiSynth1Param.MSx_P1_15_8 = (MSx_P1 >> 8) & 0xff;
+		inst->device_data.multiSynth1Param.MSx_P1_7_0 = MSx_P1 & 0xff;
+
+		inst->device_data.multiSynth1Param.MSx_P2_19_16 = (MSx_P2 >> 16) & 0x3;
+		inst->device_data.multiSynth1Param.MSx_P2_15_8 = (MSx_P2 >> 8) & 0xff;
+		inst->device_data.multiSynth1Param.MSx_P2_7_0 = MSx_P2 & 0xff;
+
+		inst->device_data.multiSynth1Param.MSx_P3_19_16 = (MSx_P3 >> 12) & 0x3;
+		inst->device_data.multiSynth1Param.MSx_P3_15_8 = (MSx_P3 >> 8) & 0xff;
+		inst->device_data.multiSynth1Param.MSx_P3_7_0 = MSx_P3 & 0xff;
+
+		writeRegister(inst,SI5351_REG_MULTISYNTH_OUT_1, (uint8_t*) &inst->device_data.multiSynth1Param, sizeof(si5351_multiSynthxParameters_t));
+		break;
+
+		default:
+		break;
+
+
+	}
+
+	return 0;
+
+}
+
 int cm_setPLLParameters(si5351_driver *inst,si5351_PLLs sel_pll, uint32_t a, uint32_t b, uint32_t c){
 
 	uint32_t temp_val = 0;