MAX3580 Ver la hoja de datos (PDF) - Maxim Integrated
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MAX3580 Datasheet PDF : 20 Pages
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MAX3580
Direct-Conversion TV Tuner
Electrical Characteristics (continued)
(MAX3580 EV kit, VCC = +3.1V to +3.5V, VGND = 0V, VBB_AGC = VRF_AGC = +2.85V, RF input terminated into a 75Ω load, BBI_ and
BBQ_ are open, no input signal, VCO active, registers set according to the specified default register conditions, unless otherwise
specified. Typical values are at VCC = +3.3V, TA = +25°C, unless otherwise specified.) (Note 1)
PARAMETER
Rejection Ratio
DC Output Voltage
Output DC Offset
Baseband Highpass Cutoff
AGC Gain Slope
Ratio of Passband to
Stopband Noise
2-WIRE INTERFACE
Clock Rate
SYMBOL
VCM
CONDITIONS
At 5.25MHz (UHF mode)
At 4.75MHz (VHF mode)
At 13.25MHz (UHF mode) (Note 3)
At 11.75MHz (VHF mode) (Note 3)
At > 16.2MHz
Common mode (Note 11)
VBB_AGC = 2.85V
Programmable
VBB_AGC = 0.5V to 2.85V
VBB_AGC = 2.85V, 10kHz to 3.8MHz
vs. 16.2MHz to 23.8MHz
MIN TYP MAX
23
23
63
61
84
0.485 x VCC
-100
+100
20 to 200
14
35
15
UNITS
dB
VDC
mV
Hz
dB/V
dB
400
kHz
Note 1: Part is tested at room temperature only. Performance at cold and hot temperature is guaranteed by design and
characterization.
Note 2: The specified overall voltage gain is suitable to amplify -93dBm to -20dBm to 1VP-P at the baseband output.
Note 3: Guaranteed by design characterization over the specified operating conditions. Not production tested.
Note 4: BB_AGC adjusted for gain = 72dB with RF_AGC at 2.85V.
Note 5: Two tones at a) 230MHz and 431MHz with IM measured at 201MHz and b) 230MHz and 701MHz with IM measured at
471MHz.
Note 6: Two tones at 499MHz and 689MHz with IM measured at 879MHz.
Note 7: IM3 measured with two tones within the adjacent channel at a) 205.75MHz and 210.5MHz with IM measured at 201MHz
and b) 475.25MHz and 479.5MHz with IM measured at 471MHz.
Note 8: Measured at RF = 171MHz with harmonics at 511MHz (3rd harmonic) and 851MHz (5th harmonic).
Note 9: Delay of 2ns equal 2.74° phase error.
Note 10: UHF rolloff of 4dB in addition to gain flatness specification.
Note 11: Production tested at VCC = +3.5V to limits of 1.7V -0.12/+0.1V.
Note 12: Operation in the VHF band requires the R-divider = 2.
Note 13: Operation of the N-divider at values below 12 is not tested or guaranteed.
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