MAX3540(2007) 데이터 시트보기 (PDF) - Maxim Integrated
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MAX3540 Datasheet PDF : 16 Pages
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Complete Single-Conversion Television Tuner
AC ELECTRICAL CHARACTERISTICS
(MAX3540 Evaluation Kit, VCC = +3.1V to +3.5V, 75Ω system impedance, default register settings, VRFAGC = VIFAGC = +3V (minimum
attenuation), TA = 0°C to +85°C, unless otherwise noted. Typical values are at VCC = +3.3V, TA = +25°C, unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
RF INPUT TO IFOUT1_ OUTPUT
VHF_IN, LPF enabled, INPT = 00
54
Operating Frequency Range
(See Table 7)
VHF_IN, LPF disabled, INPT = 01
100
UHF_IN, INPT = 10
300
Output Frequency
Voltage Gain
Operating Frequency Range
Analog channel PIX carrier
Digital channel center frequency
Source impedance =
Maximum gain, VRFAGC = 3V,
54MHz to 860MHz
75Ω, load impedance = Maximum gain, VRFAGC = 3V, 28.0
200Ω
broadcast channels
Minimum gain, VRFAGC = 0.5V
Gain specification met VHF_IN
54
across these frequency
bands
UHF_IN
300
Input Return Loss
Worst case, selected channel
Noise Figure
Input IP2
(In-Band and Out-of-Band Tones)
Maximum gain, VRFVGC = 3V (Note 1)
Maximum gain, VRFVGC = 3V
At 12.5dB of gain
Input IP3
Maximum gain, VRFVGC = 3V
(In-Band and Out-of-Band Tones) At 12.5dB of gain
5
Input P1dB
Maximum gain, VRFVGC = 3V
At 12.5dB of gain, CW tone at fC - 36MHz, tested at Ch
69 in UHF band
Beats Within Output
0dBmV PIX carrier level (Note 1)
VHF_IN from 150MHz to 960MHz
Beats, Converted to Output
VHF_IN from 960MHz to 1400MHz
UHF_IN from 600MHz to 1400MHz
Gain Flatness
54MHz to 60MHz
Isolation
5MHz to 50MHz, RF input to IF output, relative to desired
channel
Port-to-Port Isolation
Isolation between RF input ports at 215MHz
Measured at 91.5MHz 54MHz to 860MHz
Image Rejection
above desired channel’s Broadcast channels,
center frequency
TA = +25°C
66
Spurious Leakage at RF Input
5MHz to 65MHz
65MHz to 878MHz
10kHz offset
Phase Noise (Single-Sideband) 100kHz offset, 1.5kHz loop bandwidth
1MHz offset, 1.5kHz loop bandwidth
Output Return Loss
Balanced 50Ω load
TYP
45.75
44
34
34
-11
8
4.4
15
29
-13
11
-24.5
-3
-60
-60
-40
-40
60
30
70
-40
-40
-85
-105
-125
9
MAX UNITS
100
300 MHz
860
MHz
45.5
dB
300
MHz
860
dB
dB
dBm
dBm
dBm
dBc
dBc
1.5
dBP-P
dBc
dB
dBc
dBmV
dBc/Hz
dB
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