HFA3766 Datasheet, PDF (8/11 Pages) Intersil Corporation – 400MHz AGC Quadrature IF Modulator/Demodulator

HFA3766
Cascaded AC Electrical Specifications, Demodulator Chain Performance V_CC = 3.0V, LO = 560 MHz, and
IF = 280 MHz, Unless Otherwise Specified
PARAMETER
CASCADED CHARACTERISTICS
Cascaded Power Gain
Cascaded OIP3
Cascaded Noise Figure
Cascaded Output 1dB Compression
(NOTE 6)
TEST LEVEL TEMP. (^oC) MIN
TYP
MAX
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IF Demodulator I and Q Outputs Voltage Swing
(IF input Range of -70dBm to -30dBm)
A
Full
-
250
-
IF Demodulator I and Q Channels Output Drive Capability
(Z_OUT = 50Ω) C_MAX = 10pF, V_OUT = 500mV_P-P
IF Demodulator I/Q Amplitude Balance, IFin = -50dBm at 50Ω
IF Demodulator I/Q Phase Balance, IFin = -50dBm at 50Ω
IF Demodulator Output, P1dB
C
A
A
TBD
25
Full
Full
TBD
1.2
-1.0
-4.0
TBD
2
0
0
TBD
-
+1.0
+4.0
TBD
NOTES:
6. A = Production Tested, B = Based on Characterization, C = By Design.
7. Determined by external components.
UNITS
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mV_P-P
kΩ
dB
Degrees
mV
AC Electrical Specifications, Modulator Performance V_CC = 3.0V, Unless Otherwise Specified
PARAMETER
(NOTE 8) TEMP
SYMBOL TEST LEVEL (^oC)
MIN
TYP
MAX
UNITS
IF Modulator I/Q Amplitude Balance (Note 9)
Mabal
B
25
-1.0
0
+1.0
dB
IF Modulator I/Q Phase Balance (Note 9)
Mphbal
B
25
-4.0
0
+4.0 Degrees
IF Modulator SSB Output Power (Note 10)
Mssbpw
A
Full
-12
-7
-4
dBm
IF Modulator Side Band Suppression (Note 10)
Mssbss
A
Full
26
33
-
dBc
IF Mod Carrier Suppression (LO Buffer Enabled) (Note 10) Mssbcs
A
Full
28
30
-
dBc
IF Mod Carrier Suppression (LO Buffer Disabled) (Note 10) Mssbcs1
B
25
28
36
-
dBc
IF Modulator Output Noise Floor (Out of Band)
Moutn0
B
25
-
-132
-
dBm/Hz
IF Modulator I/Q 3dB Cutoff SEL0/1 = 2.2MHz (Note 11)
Msel1f
A
Full
1.8
2.2
2.5
MHz
IF Modulator I/Q 3dB Cutoff SEL0/1 = 4.4MHz (Note 11)
Msel2f
A
Full
3.6
4.4
5.0
MHz
IF Modulator I/Q 3dB Cutoff SEL0/1 = 8.8MHz (Note 11)
Msel3f
A
Full
7.3
8.8
9.8
MHz
IF Modulator I/Q 3dB Cutoff SEL0/1 = 17.6MHz (Note 11)
Msel4f
A
Full
14.6
17.6
19.6
MHz
IF Modulator Spread Spectrum Output Power (Note 12)
Mdsspw
B
25
-12
-7
-4
dBm
IF Modulator Side Lobe to Main Lobe Ratio, LPF = 8.8MHz Mdsssl
A
(Note 12)
Full
32
35
-
dB
NOTES:
8. A = Production Tested, B = Based on Characterization, C = By Design.
9. Data is characterized by DC levels applied to MOD TXI and Q pins for 4 quadrants with LO output as reference or indirectly by the SSB
characteristics.
10. Power at the fundamental SSB frequency of two 6MHz, 90 degrees apart square waves applied at TXI and TXQ inputs. V_IH = 3.0V,
V_IL = 0.5V. LPF selected to 8.8MHz cutoff.
11. Cutoff frequencies are specified for both modulator and demodulator as the filter bank is shared and multiplexed for Transmit and Receive. Data
is characterized by observing the attenuation of the fundamental of a square wave digital input swept at each channel separately. The IF output
is down converted by an external wideband mixer with a coherent LO input for each of quadrature signals separately.
12.
Typical ratio
11M chip/s,
characterization
2²³-1 sequence
with R_TUNE set
code signals.
to
7.7MHz,
LPF
selected
for
8.8MHz.
TXI
and
TXQ
Digital
Inputs
at
two
independent
and
aligned
8