LT5568_15 Datasheet, PDF (2/16 Pages) Linear Technology – 700MHz – 1050MHz High Linearity Direct Quadrature Modulator

LT5568
ABSOLUTE AXI U RATI GS
(Note 1)
Supply Voltage.........................................................5.5V
Common Mode Level of BBPI, BBMI and
BBPQ, BBMQ .......................................................2.5V
Operating Ambient Temperature
(Note 2) ............................................... –40°C to 85°C
Storage Temperature Range................... –65°C to 125°C
Voltage on any Pin
Not to Exceed...................... –500mV to V_CC + 500mV
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
16 15 14 13
EN 1
12 GND
GND 2
11 RF
17
LO 3
10 GND
GND 4
9 GND
5678
UF PACKAGE
16-LEAD (4mm × 4mm) PLASTIC QFN
T_JMAX = 125°C, θ_JA = 37°C/W
EXPOSED PAD (PIN 17) IS GROUND, MUST BE SOLDERED TO PCB
ORDER PART NUMBER UF PART MARKING
LT5568EUF
5568
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS V_CC = 5V, EN = High, T_A = 25°C, f_LO = 850MHz, f_RF = 852MHz, P_LO = 0dBm.
BBPI, BBMI, BBPQ, BBMQ inputs 0.54V_DC, Baseband Input Frequency = 2MHz, I&Q 90° shifted (upper side-band selection).
P_{RF, OUT} = –10dBm, unless otherwise noted. (Note 3)
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX
UNITS
RF Output (RF)
f_RF
RF Frequency Range
RF Frequency Range
–3dB Bandwidth
–1dB Bandwidth
0.6 to 1.2
GHz
0.7 to 1.05
GHz
S_{22, ON}
S_{22, OFF}
NFloor
RF Output Return Loss
RF Output Return Loss
RF Output Noise Floor
G_P
G_V
P_OUT
G_{3LO vs LO}
Conversion Power Gain
Conversion Voltage Gain
Absolute Output Power
3 • LO Conversion Gain Difference
EN = High (Note 6)
EN = Low (Note 6)
No Input Signal (Note 8)
P_OUT = 4dBm (Note 9)
P_OUT = 4dBm (Note 10)
P_OUT/P_{IN, I&Q}
20 • Log (V_{OUT, 50Ω}/V_{IN, DIFF, I or Q})
1V_{P-P DIFF} CW Signal, I and Q
(Note 17)
– 14
– 12
– 160.3
– 154
– 154
–9
– 6.8
–3
– 6.8
– 2.8
– 23
dB
dB
dBm/Hz
dBm/Hz
dBm/Hz
dB
dB
dBm
dB
OP1dB
Output 1dB Compression
(Note 7)
8.3
dBm
OIP2
Output 2nd Order Intercept
(Notes 13, 14)
63
dBm
OIP3
Output 3rd Order Intercept
(Notes 13, 15)
22.9
dBm
IR
Image Rejection
(Note 16)
– 46
dBc
LOFT
Carrier Leakage
(LO Feedthrough)
EN = High, P_LO = 0dBm (Note 16)
EN = Low, P_LO = 0dBm (Note 16)
– 43
dBm
– 65
dBm
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