AD6655BCPZ-125 Analog Devices Inc, AD6655BCPZ-125 Datasheet - Page 25

• Manufacturer Part Number: AD6655BCPZ-125
• Description: IC IF RCVR 14BIT 125MSPS 64LFCSP
• Manufacturer: Analog Devices Inc

Specifications of AD6655BCPZ-125

• Function: IF Diversity Receiver
• Frequency: 450MHz
• Rf Type: Cellular, CDMA2000, GSM EDGE, W-CDMA
• Secondary Attributes: 32-Bit Numerically Controlled Oscillator
• Package / Case: 64-VFQFN, CSP Exposed Pad
• Receiving Current: 705mA
• Frequency Range: 450MHz
• Rf Ic Case Style: LFCSP
• No. Of Pins: 64
• Supply Voltage Range: 1.7V To 1.9V
• Operating Temperature Range: -40°C To +85°C
• Frequency Max: 650MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AD6655-125EBZ - BOARD EVAL W/AD6655 & SOFTWARE
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Figure 25. AD6655-150 Single-Tone FFT with f
Figure 26. AD6655-125 Single-Tone FFT with f
Figure 27. AD6655-125 Single-Tone FFT with f
–100
–120
–140
–100
–120
–140
–100
–120
–140
–20
–40
–60
–80
–20
–40
–60
–80
–20
–40
–60
–80
0
0
0
0
0
0
150MSPS
445.1MHz @ –1dBFS
SNR = 67.4dBc (65.4dBFS)
SFDR = 74.1dBc
f
125MSPS
30.3MHz @ –1dBFS
SNR = 74.7dBc (75.7dBFS)
SFDR = 89.6dBc
f
NCO
NCO
= 429MHz
= 21MHz
SECOND HARMONIC
5
5
5
THIRD HARMONIC
10
10
10
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
15
THIRD HARMONIC
15
15
20
SECOND HARMONIC
125MSPS
2.4MHz @ –1dBFS
SNR = 74.5dBc (75.5dBFS)
SFDR = 87.8dBc
f
NCO
IN
IN
IN
20
20
= 445.1 MHz, f
=2.4 MHz, f
= 15.75MHz
= 30.3 MHz, f
25
30
25
25
HARMONIC
NCO
THIRD
NCO
NCO
= 15.75 MHz
3
5
= 429 MHz
= 21 MHz
3
3
0
0
Rev. A | Page 25 of 88
Figure 29. AD6655-125 Single-Tone FFT with f
Figure 30. AD6655-125 Single-Tone FFT with f
Figure 28. AD6655-125 Single-Tone FFT with f
–100
–120
–140
–100
–120
–140
–100
–120
–140
–20
–40
–60
–80
–20
–40
–60
–80
–20
–40
–60
–80
0
0
0
0
0
0
5
5
5
10
10
10
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
15
15
15
125MSPS
70.3MHz @ –1dBFS
SNR = 74.6dBc (75.6dBFS)
SFDR = 86.1dBc
f
125MSPS
140.1MHz @ –1dBFS
SNR = 74.1dBc (75.1dBFS)
SFDR = 90.3dBc
f
125MSPS
220.1MHz @ –1dBFS
SNR = 73.4dBc (74.4dBFS)
SFDR = 90.2dBc
f
THIRD HARMONIC
NCO
NCO
NCO
IN
IN
IN
20
20
= 140.1 MHz, f
20
= 220.1 MHz, f
= 70.3 MHz, f
= 78MHz
= 142MHz
= 231MHz
THIRD HARMONIC
25
25
25
AD6655
NCO
NCO
NCO
= 78 MHz
= 142 MHz
= 231 MHz
3
3
3
0
0
0