MAX12005 Datasheet, PDF (3/14 Pages) Maxim Integrated Products – Satellite IF Switch

Satellite IF Switch
AC ELECTRICAL CHARACTERISTICS
(MAX12005 EV Kit, VCC = +3.0V to +3.5V, fIN = 950MHz, VIN = 70dBFV, TA = -40NC to +85NC, mode set to master, input gain stages
set to 0dB, RF inputs matched to 75I, RF output loads = 75I. Typical values are at +3.3V and at TA = +25NC, unless otherwise
noted.) (Note 1)
PARAMETER
Operation Frequency
DISEQC_RX_ Tone Input Level
Switch Gain at 950MHz (Note 3)
SYMBOL
fRF
VIN
CONDITIONS
fIN = 22kHz (Note 5)
0dB gain
+6dB gain
+12dB gain
MIN TYP MAX UNITS
950
2150 MHz
60
mVP-P
0
+6
dB
+12
Cascade Input Switch Gain at
950MHz
|S21|
0
dB
Switch-to-Switch Gain Match
Gain Slope with Frequency
D|S21|
At 950MHz (Note 4)
Between 950MHz and 2150MHz
-1.5
+3.5 dB
+3
dB
Single-Input Source Gain Change
Gain change from single output con-
nected to a single input to four outputs
connected to a single input
-0.4
dB
Output level set to +89dBFV by varying
3rd-Order Intermodulation Product
(Case 1)
IM3
three equal amplitude tones at 955MHz,
962MHz, and 965MHz; measure products
-35
dBc
at 952MHz and 958MHz
3rd-Order Intermodulation Product
(Case 2)
Output level set to +89dBFV by varying
IM3
three equal amplitude tones at 2135MHz,
2142MHz, and 2145MHz; measure prod-
ucts at 2132MHz and 2138MHz
-34 dBc
RFIN1–RFIN8 Input Return Loss
|S11|
-12
dB
CASCADE_IN1–CASCADE_IN4 Input
Return Loss
|S11|
-12
dB
RFOUT1–RFOUT4 Output Return Loss
Switch Isolation
|S22|
-12
dB
55
dB
Port-to-Port Isolation
33
dB
DiSEqC Clock
fOSC
8
MHz
Note 1: Production tested at +25NC; guaranteed by design and characterization at -40NC and +85NC.
Note 2: To supply the specified input-voltage-detect levels requires the use of a voltage-divider comprised of 12.7kI and 1.02kI
Q0.5% tolerance resistors. The voltage being divided is expected to be VOL = 14.75V maximum and VOH = 16.75V minumum.
Note 3: The common input gain step is set by analog control. All gain measurements have only one output connect to each input.
Switch gain measurements do not include cascade inputs as part of the switch signal path.
Note 4: Switch-to-switch gain match is defined as each switch to every other switch gain match. Each switch must be set up with
the same input gain step.
Note 5: 60mVP-P square wave for fIN = 22kHz. For sine wave, the typical minimum is 100mVP-P.
3