diff --git a/firmware/common/hackrf_core.c b/firmware/common/hackrf_core.c
index 46fb76bd..8686aedc 100644
--- a/firmware/common/hackrf_core.c
+++ b/firmware/common/hackrf_core.c
@@ -179,12 +179,9 @@ void cpu_clock_init(void)
 	while (CGU_PLL0USB_STAT & CGU_PLL0USB_STAT_LOCK);
 
 	/* configure PLL0USB to produce 480 MHz clock from 12 MHz XTAL_OSC */
-	CGU_PLL0USB_MDIV = CGU_PLL0USB_MDIV_MDEC(0x07FFA)
-			| CGU_PLL0USB_MDIV_SELP(0x0B)
-			| CGU_PLL0USB_MDIV_SELI(0x10)
-			| CGU_PLL0USB_MDIV_SELR(0x0);
-	CGU_PLL0USB_NP_DIV = CGU_PLL0USB_NP_DIV_PDEC(98)
-			| CGU_PLL0USB_NP_DIV_NDEC(514);
+	/* Values from User Manual v1.4 Table 94, for 12MHz oscillator. */
+	CGU_PLL0USB_MDIV = 0x06167FFA;
+	CGU_PLL0USB_NP_DIV = 0x00302062;
 	CGU_PLL0USB_CTRL |= (CGU_PLL0USB_CTRL_PD
 			| CGU_PLL0USB_CTRL_DIRECTI
 			| CGU_PLL0USB_CTRL_DIRECTO