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-rw-r--r--host/lib/usrp/x300/x300_dac_ctrl.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/host/lib/usrp/x300/x300_dac_ctrl.cpp b/host/lib/usrp/x300/x300_dac_ctrl.cpp
index 1254e035e..86b6e8b62 100644
--- a/host/lib/usrp/x300/x300_dac_ctrl.cpp
+++ b/host/lib/usrp/x300/x300_dac_ctrl.cpp
@@ -156,6 +156,8 @@ public:
write_ad9146_reg(0x03, (1 << 6)); // 2s comp, i first, byte mode
// Configure interpolation filters
+ // Both Halfband Filters are set to Mode 0 for an interpolation
+ // factor of 4, without frequency shift and modulation
write_ad9146_reg(0x1C, 0x00); // Configure HB1
write_ad9146_reg(0x1D, 0x00); // Configure HB2
write_ad9146_reg(0x1B, 0xE4); // Bypass: Modulator, InvSinc, IQ Bal