LTC5599IUFPBF View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC5599IUFPBF' PDF : 42 Pages View PDF
LTC5599
Typical Performance Characteristics VCC = 3.3V, EN = 3.3V, VCTRL = 3.3V, TC = 25°C,
PLO = 0dBm, fLO = 500MHz, BBPI, BBMI, BBPQ, BBMQ common mode DC voltage VCMBB = 1.4VDC, I and Q baseband input signal = 2MHz,
2.1MHz, 1VP-P(DIFF, I or Q), I and Q 90° shifted, lower sideband selection, TEMPUPDT = 0, register 0x00 value according to Table 5, all
other registers set to default values, unless otherwise noted. Test circuit is shown in Figure 13.
LO Return Loss for Standard,
900MHz and 1260MHz Match
0
STANDARD REG 0x00 = 0x0A, L1 = 39nH, C5 = 15pF
900MHz REG 0x00 = 0x12, L1 = 8.2nH, C5 = 3.3pF
–5 1260MHz REG 0x00 = 0x01, L1 = 5.6nH, C5 = 3pF
–10
STANDARD
–15
900MHz
–20
1260MHz
–25
–30
–35
500
SOLID: EN = HIGH; DASHED: EN = LOW
700 900 1100 1300 1500 1700 1900
LO FREQUENCY (MHz)
5599 G89
RMS EVM vs RF Output Power
with 1Ms/s 16-QAM Signal
10
DG = –2
9
8
DG = –6
7
DG = 0
DG = –8
6
DG = –10
5
DG = –12
DG = –16
4
3
DG = –19
2
1
0
–20 –16 –12 –8 –4
RF POWER (dBm)
DG = –4
0
4
5599 G90
Peak EVM vs RF Output Power
with 1Ms/s 16-QAM Signal
20
DG = –6
DG = –2
DG = –8
15
DG = –10
DG = 0
DG = –12
10
DG = –16
DG = –19
5
0
–20 –16 –12 –8 –4
RF POWER (dBm)
DG = –4
0
4
5599 G91
5599f
16
For more information www.linear.com/LTC5599
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