HMC6000LP711E Datasheet, PDF (15/18 Pages) Hittite Microwave Corporation – Multi-Gbps Data Communications

HMC6000LP711E
v00.1112
Millimeterwave Transmitter
57 - 64 GHz
Table 8. Transmitter Register Array Assignments
Register Array Row & Bit
Internal Signal Name
Signal Function
ROW6<3>
ifvga_tune<3>
ROW6<2>
ROW6<1>
ifvga_tune<2>
ifvga_tune<1>
Controls the tuning of the IF filter for the variable gain amplifier;
ROW6<3:0> = 1111 for normal operation
ROW6<0>
ifvga_tune<0>
ROW7
ROW7<7>
ROW7<6>
ROW7<5>
ROW7<4>
ifvga_vga_adj<3>
ifvga_vga_adj<2>
ifvga_vga_adj<1>
ifvga_vga_adj<0>
IF variable gain amplifier gain control bits;
ROW7<7:4> =
0000 is highest gain
1101 is lowest gain
Attenuation is ≈ 1.3 dB / step, ≈ 17 dB maximum
ROW7<3>
if_upmixer_tune<3>
ROW7<2>
ROW7<1>
if_upmixer_tune<2>
if_upmixer_tune<1>
Controls the tuning of the IF filter for the IF to RF upmixer;
ROW7<3:0> = 1111 for normal operation
ROW7<0>
if_upmixer_tune<0>
ROW8
ROW8<7>
tripler_bias<13>
ROW8<6>
tripler_bias<12>
ROW8<5>
tripler_bias<11>
ROW8<4>
ROW8<3>
tripler_bias<10>
tripler_bias<9>
These bits control the biasing of the frequency tripler;
ROW8<7:0> = 10111111 for normal operation
ROW8<2>
tripler_bias<8>
ROW8<1>
tripler_bias<7>
ROW8<0>
tripler_bias<6>
ROW9
ROW9<7>
tripler_bias<5>
ROW9<6>
tripler_bias<4>
ROW9<5>
ROW9<4>
tripler_bias<3>
tripler_bias<2>
These bits control the biasing of the frequency tripler;
ROW9<7:2> = 011011 for normal operation
ROW9<3>
tripler_bias<1>
ROW9<2>
tripler_bias<0>
ROW9<1>
ROW9<0>
driver_bias2<1>
driver_bias2<0>
Controls the bias current for the PA predriver2;
ROW9<1:0> = 11 for normal operation
ROW10
ROW10<7>
RDACIN<5>
ROW10<6>
RDACIN<4>
ROW10<5>
ROW10<4>
RDACIN<3>
RDACIN<2>
VCO amplitude adjustment DAC;
ROW10<7:2> = 111100 for normal operation
ROW10<3>
RDACIN<1>
ROW10<2>
RDACIN<0>
ROW10<1>
SYNRESET
ROW10<1> = 0 for normal operation
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15
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