HMC1197LP7FE datasheet(41/57 Pages) AD

41 / 57 page

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Phone: 978-250-3343

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HMC1197LP7FE

v03.0314

Wideband direct Quadrature Modulator

w/ Fractional-n Pll & Vco, 100 - 4000 MHz

2.11

reg 09h charge Pump register deFault 547264 h

Bit

Type

Name

Width

Default

Description

[6:0]

R/W

CP DN Gain

100d

64h

Charge Pump DN Gain Control 20 µA√step

Affects fractional phase noise and lock detect settings

0d = 0 µA

1d = 20 µA

2d = 40 µA

...

127d = 2.54mA

Default 2mA

[13:7]

R/W

CP UP Gain

100d

64h

Charge Pump UP Gain Control 20 µA per step

Affects fractional phase noise and lock detect settings

0d = 0 µA

1d = 20 µA

2d = 40 µA

...

127d = 2.54mA

Default 2mA

[20:14]

R/W

Offset Magnitude

81d

Charge Pump Offset Control 5 µA/step

Affects fractional phase noise and lock detect settings

0d = 0 µA

1d = 5 µA

2d = 10 µA

...

127d = 635 µA

Default 405µA

[21]

R/W

Offset UP enable

Sets Direction of Reg 09h[20:14] Up, 0- UP Offset Off

[22]

R/W

Offset DN enable

Sets Direction of Reg 09h[20:14] Down, 0- DN Offset Off

[23]

R/W

HiK charge pump Mode

Only recommended with external VCOs and Active Loop

Filters. When enabled the HMC1197LP7FE increases CP

current by 3 mA, thereby improving phase noise perfor-

mance, and increasing loop bandwidth

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rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106

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HMC1197LP7FE Datasheet(PDF) 41 Page - Analog Devices

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