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HMC832

Data Sheet

TYPICAL PERFORMANCE CHARACTERISTICS

Figure 3. Typical Closed-Loop Integer Phase Noise, 50 MHz PD Frequency, Output

Gain = 6 (VCO_REG 0x07[3:0] = 6d), High Performance Mode (VCO_REG 0x03[1:0]

= 3d), Phase Noise Integrated from 1 kHz to 100 MHz, See Table 12

Figure 4. Open-Loop VCO Phase Noise at 1800 MHz

Figure 5. Free Running VCO Phase Noise at 3000 MHz

Figure 6. Typical Closed-Loop Fractional Phase Noise, 50 MHz PD Frequency,

Output Gain = 6 (VCO_REG 0x07[3:0] = 6d), High Performance Mode (VCO_REG

0x03[1:0] = 3d), Phase Noise Integrated from 1 kHz to 100 MHz, See Table 12

Figure 7. Closed-Loop Phase Noise at 1800 MHz, Divided by 1 to 62, PD

Frequency, Loop Filter Bandwidth = 75 kHz (Type 2 from Table 12), High Perfor-

mance Mode (VCO_REG 0x03[1:0] = 3d), Subset of Available Output Divide Ratios

is Shown; Full Range of Output Divide Values Includes 1, 2, 4, 6, 8, … 58, 60, 62

Figure 8. Closed-Loop Phase Noise at 3000 MHz, Divided by 1 to 62, PD

Frequency, Loop Filter Bandwidth = 75 kHz (Type 2 from Table 12), High Perfor-

mance Mode (VCO_REG 0x03[1:0] = 3d), Subset of Available Output Divide Ratios

is Shown; Full Range of Output Divide Values Includes 1, 2, 4, 6, 8, … 58, 60, 62

–170

10k

100k

10M

100M

–160

–150

–140

–130

–120

–110

–100

OFFSET (Hz)

750MHz, EVM = –62.5dB, OR 0.075%

1600MHz, EVM = –57dB OR 0.141%

2500MHz, EVM = –53.3dB OR 0.216%

875MHz, EVM = –64.8dB OR 0.058%

1600MHz, EVM = –59.8dB OR 0.102%

2500MHz, EVM = –55.8dB OR 0.168%

LOOP BW = 127kHz

LOOP BW = 75kHz

10k

100k

10M

100M

OFFSET (Hz)

–180

–160

–140

–120

–100

–80

–60

LOW CURRENT MODE

(VCO_REG0x03[10] = 1d)

HIGH PERFORMANCE MODE

(VCO_REG0x03[10] = 3d)

10k

100k

10M

100M

OFFSET (Hz)

–180

–160

–140

–120

–100

–80

–40

–60

LOW CURRENT MODE

(VCO_REG0x03[10] = 1d)

HIGH PERFORMANCE MODE

(VCO_REG0x03[10] = 3d)

–170

10k

100k

10M

100M

–160

–150

–140

–130

–120

–110

–100

OFFSET (Hz)

LOOP BW = 127kHz

880MHz, EVM = –61.3dB OR 0.086%

1605MHz, EVM = –57.5dB OR 0.133%

2505MHz, EVM = –52dB OR 0.251%

880MHz, EVM = –61.8dB OR 0.081%

1605MHz, EVM = –57.2dB OR 0.138%

2505MHz, EVM = –53.9dB OR 0.204%

LOOP BW = 75kHz

10k

100k

10M

100M

–170

–160

–150

–140

–130

–120

–110

–100

OFFSET (Hz)

÷16

÷32

÷62

÷1

÷2

÷8

÷4

10k

100k

10M

100M

–170

–160

–150

–140

–130

–120

–110

–100

OFFSET (Hz)

÷16

÷32

÷62

÷1

÷2

÷8

÷4

Rev. A | Page 8 of 48

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