MAX3540 Maxim Integrated Products, MAX3540 Datasheet - Page 4

• Manufacturer Part Number: MAX3540
• Description: Complete Single-Conversion Television Tuner
• Manufacturer: Maxim Integrated Products

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Complete Single-Conversion Television Tuner
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX3540 Evaluation Kit, V
attenuation), T
Note 1: Guaranteed by design and characterization.
4
IF VARIABLE-GAIN AMPLIFIER
Input Impedance
Output Impedance
Passband Voltage Gain
Passband Gain Flatness
Output Voltage
AGC Gain Slope
Equivalent Input Voltage
Noise Density
Noise Figure Change vs.
Attenuation
IM3
IF OVERLOAD DETECTOR (see the IF Overload Detector section)
Output Overload Attack Point
Attack-Point Accuracy
Detector Output Voltage Range
Detector Gain
FREQUENCY SYNTHESIZER
REFERENCE OSCILLATOR
Frequency
DIVIDERS
RF N-Divider Ratio
RF R-Divider Ratio
LO PHASE DETECTOR AND CHARGE PUMP
Comparison Frequency
Charge-Pump Current
C har g e- P um p Thr ee- S tate C ur r ent
Charge-Pump Current Matching
LOCAL OSCILLATOR (OSCILLATOR WITH NARROW BAND LOOP)
VCO Tuning Range
VCO Tuning Gain
2-WIRE SERIAL INTERFACE
Clock Frequency
_______________________________________________________________________________________
PARAMETER
A
= 0°C to +85°C, unless otherwise noted. Typical values are at V
CC
= +3.1V to +3.5V, 75Ω system impedance, default register settings, V
Balanced
Balanced (Note 1)
S our ce l oad = 300Ω ,
outp ut l oad = 300Ω
40MHz to 48MHz (Note 1)
V
V
At 44MHz, maximum gain, V
V
Negative polarity, overload reduces V
(open collector, 0.3mA sink)
CP = 00
CP = 01
CP = 10
CP = 11
Tank frequency
Tank oscillator gain
IFAGC
IFAGC
OUT
= 1.5V
= 3V (Note 1)
= 3V to 0.5V (Note 1)
P-P
, 40dB < gain < 60dB (Note 1)
CONDITIONS
Maximum gain setting,
V
Minimum gain setting,
V
IFAGC
IFAGC
IFAGC
= 3V
= 0.5V
= 3V (Note 1)
DET
CC
= +3.3V, T
A
= +25°C, unless otherwise noted.)
31.50
2160
MIN
256
-54
0.5
54
8
RFAGC
< 0.35
2000
TYP
= V
0.7
0.5
1.5
56
±1
70
±5
4
1
2
5
IFAGC
32,767
250.00
MAX
4400
300
127
500
400
1.2
7.3
3.0
= +3V (minimum
65
21
30
2
nV/√Hz
UNITS
dB/dB
MHz/V
dB/V
MHz
MHz
V
V
dBc
kHz
kHz
V/V
mA
dB
dB
dB
nA
%
Ω
Ω
P-P
P-P
V