نقد و بررسی
ADF4113HVBRUZآی سی ADF4113 یک سینتی سایزر فرکانس PLL مایکرویوی تا 4 گیگاهرتز و با قابلیت های زیاد می باشد.
از آنجا که فرکانس کاری این آی سی نسبت به سایر آی سی های خانواده خود بالاتر می باشد، می توان آن را به جای آی سی های ADF4110 , ADF4111 , ADF4112 نیز استفاده نمود.
Clock/Frequency Synthesizer (RF) IC 4GHz 1 16-TSSOP (0.173″, 4.40mm Width)
FEATURES
High voltage charge pump (15 V)
2.7 V to 5.5 V power supply
200 MHz to 4.0 GHz frequency range
Pin compatible with ADF4110, ADF4111, ADF4112, ADF4113
ADF4106, and ADF4002 synthesizers
Two selectable charge pump currents
Digital lock detect
Power-down mode
Loop filter design possible with ADIsimPLL™
APPLICATIONS
Applications using high voltage VCOs
IF/RF local oscillator (LO) generation in base stations
Point-to-point radio LO generation
Clock for analog-to-digital and digital-to-analog converters
Wireless LANs, PMR
Communications test equipment
GENERAL DESCRIPTION
The ADF4113HV is an integer-N frequency synthesizer with a
high voltage charge pump (15 V). The synthesizer is designed
for use with voltage controlled oscillators (VCOs) that have
high tuning voltages (up to 15 V). Active loop filters are often
used to achieve high tuning voltages, but the ADF4113HV
charge pump can drive a high voltage VCO directly with a
passive-loop filter. The ADF4113HV can be used to implement
local oscillators in the upconversion and downconversion
sections of wireless receivers and transmitters. It consists of a
low noise digital phase frequency detector (PFD), a precision
high voltage charge pump, a programmable reference divider,
programmable A and B counters, and a dual-modulus prescaler
(P/P + 1).
A simple 3-wire interface controls all of the on-chip registers.
The devices operate with a power supply ranging from 2.7 V to
5.5 V and can be powered down when not in use.
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