參數(shù)資料
型號(hào)： L64733C-44
廠商： LSI CORP
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQCC44
封裝： 7 X 7 MM, 0.90 MM HEIGHT, QFN-44
文件頁(yè)數(shù)： 22/52頁(yè)
文件大?。?/td> 552K
代理商： L64733C-44
L64733C/L64734 Tuner and Satellite Receiver Chipset
29
Baseband Frequency
Response
Deviation from ideal 7th-order
Butterworth, measure to F
3 dB x 0.7.
Include front-end tilt effects
0.5
–
0.5
dB
LPF Cutoff Frequency
Accuracy
Measured
3 dB point.
@8 MHz
@31.4 MHz
5.5
10
–
5.5
10
%
Quadrature Gain Error
Includes effects from baseband lters
–
1.2
dB
Quadrature Phase Error
Measure at 125 kHz
–
4
Deg
Synthesizer
Crystal Frequency Range
4
–
7.26
MHz
XTLOUT Voltage Levels
Measured on 10 pF in parallel with
1M
0.75
1.0
1.5
Vpp
XTLOUT DC Level
–
2.0
–
V
MODp, MODn Delay
Must assert MOD level within this time
period to ensure that the next PSOUT
period gives correct count. Delay is
with respect to rising edge of PSOUT
(previous count).
–
7
nsec
PLLINp, PLLINn and
MODp, MODn Hold Time
With respect to rising edge of PSOUT.
This means that PSOUT need not con-
tinue to be asserted after MOD has
given correct count.
0
–
nsec
Local Oscillator
LO Tuning Range
543
–
1180
MHz
LO Phase Noise, Including
Doubler. Subject to LC tank
implementation.
1 kHz offset. Depends on PLL loop
gain.
–
55
–
dBc/Hz
10 kHz offset. Depends on PLL loop
gain.
–
75
–
dBc/Hz
100 kHz offset
–
95
–
dBc/Hz
LO Buffer Frequency
Range when overdriven by
external LO
FDOUB = low
925
–
2175
MHz
1.
For symbol rates below 15 MS/s, the maximum input power might be subject to shifting down by
roughly 10 * log(15/Rs[MS/s]) dB due to channel bandwidth reduction.
2.
x 1.5 harmonic rejection for FLO = 725 MHz.
Table 4
AC Characteristics of the L64733C (Cont.)
Parameter
Condition
Min
Typ
Max
Units
(Sheet 3 of 3)
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