ADRF6750 Analog Devices, Inc., ADRF6750 Datasheet - Page 3

• Manufacturer Part Number: ADRF6750
• Description: 950 Mhz To 1575 Mhz Quadrature Modulator With Integrated Fractional-n Pll And Vco
• Manufacturer: Analog Devices, Inc.

SPECIFICATIONS
V
REFIN = 10 MHz, PFD = 20 MHz, loop bandwidth = 50 kHz, and LOMONx is off, unless otherwise noted.
Table 1.
Parameter
RF OUTPUT
REFERENCE CHARACTERISTICS
CHARGE PUMP
SYNTHESIZER SPECIFICATIONS
CC
Operating Frequency Range
Nominal Output Power
Gain Flatness
Output P1dB
Output IP3
Output Return Loss
LO Carrier Feedthrough
2× LO Carrier Feedthrough
Sideband Suppression
Noise Floor
Harmonics
Input Frequency
Input Sensitivity
Input Capacitance
Input Current
I
Absolute Accuracy
RSET Value
VCO Gain
Frequency Resolution
Spurs
Phase Noise
Integrated Phase Noise
Frequency Settling
Maximum Frequency Step for
Phase Detector Frequency
CP
= 5 V, T
No Autocalibration
High Value
Low Value
Sink/Source
A
= 25°C, I/Q inputs = 0.9 V p-p differential sine waves in quadrature on a 500 mV dc bias, baseband frequency = 1 MHz,
1
1
1
Test Conditions/Comments
RFOUT pin
V
Any 40 MHz
f1
Attenuator setting = 0 dB
Attenuator setting = 0 dB to 47 dB
Attenuator setting = 0 dB to 47 dB
I/Q inputs = 0 V p-p differential, Attenuator setting = 0 dB
Attenuator setting = 0 dB to 21 dB, carrier offset = 15 MHz
Attenuator setting = 21 dB to 47 dB, carrier offset = 15 MHz
REFIN pin
With R/2 divider enabled
With R/2 divider disabled
AC-coupled
Programmable
With RSET = 4.7 kΩ
With RSET = 4.7 kΩ
K
Integer boundary < loop bandwidth
>10 MHz offset from carrier
Frequency = 950 MHz to 1575 MHz
100 Hz offset
1 kHz offset
10 kHz offset
100 kHz offset
1 MHz offset
>15 MHz offset
1 kHz to 8 MHz integration bandwidth
Maximum frequency error = 100 Hz
Frequency step with no autocalibration routine;
Register CR24, Bit 0 = 1
IQ
VCO
BB
= 0.9 V p-p differential
= 3.5 MHz, f2
BB
= 4.5 MHz, P
Rev. 0 | Page 3 of 40
OUT
= −6 dBm per tone
Min
950
10
10
0.4
10
Typ
−1.6
±0.5
8.5
−12
−45
−162
−147
−170
−60
5
312.5
4.0
4.7
25
−55
−85
−80
−88
−93
−107
−133
−152
0.4
170
23
−45
−45
Max
1575
300
165
VREG
10
±100
1
100
30
ADRF6750
Unit
MHz
dBm
dB
dBm
dBm
dB
dBc
dBm
dBc
dBm/Hz
dBc/Hz
dBm/Hz
dBc
MHz
MHz
V p-p
pF
μA
mA
μA
%
kΩ
MHz/V
Hz
dBc
dBc
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
°rms
μs
kHz
MHz