參數(shù)資料
型號(hào)： TDA6500TT/C4,118
廠商： NXP SEMICONDUCTORS
元件分類： 調(diào)諧器
英文描述： 3-BAND, VIDEO TUNER, PDSO32
封裝： 6.10 MM, 0.65 MM PITCH, PLASTIC, MO-153, SOT487-1, TSSOP-32
文件頁(yè)數(shù)： 14/37頁(yè)
文件大?。?/td> 223K
代理商： TDA6500TT/C4,118
9397 750 15057
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 02 — 14 June 2005
21 of 37
Philips Semiconductors
TDA6500; TDA6501
5 V mixer/oscillator and synthesizer for PAL and NTSC standards
[1]
Limits are related to the tank circuits used in Figure 7 for a PAL application. The choice of different external components adapts the
measurement circuit to other frequency bands or NTSC applications.
[2]
The frequency shift is dened as a change in oscillator frequency when the supply voltage varies from VCC = 5 V to 4.75 V (4.5 V) or
from VCC = 5 V to 5.25 V (5.5 V). The oscillator is free running during this measurement.
[3]
The frequency drift is dened as a change in oscillator frequency when the ambient temperature varies from Tamb =25 °Cto50 °C or
from Tamb =25 °C to 0 °C. The oscillator is free running during this measurement.
[4]
Switch-on drift is dened as the change in oscillator frequency between 5 s and 15 min after switch on. The oscillator is free running
during this measurement.
[5]
The supply ripple susceptibility is measured in the circuit according to Figure 7 using a spectrum analyzer connected to the IF output. An
unmodulated RF signal is applied to the test board RF input. A sinewave signal with a frequency of 500 kHz is superimposed onto the
supply voltage. The amplitude of this ripple signal is adjusted to bring the 500 kHz sidebands around the IF carrier to a level of
53.5 dB
with respect to the carrier.
[1]
This is the level of divider interferences close to the IF. For example channel S3: fosc = 158.15 MHz, 14fosc = 39.5375 MHz. The LOSCIN
input must be left open (i.e. not connected to any load or cable); the HOSCIN1 and HOSCIN2 inputs are connected to a hybrid.
[2]
Crystal oscillator interference means the 4 MHz sidebands caused by the crystal oscillator. The rejection has to be greater than 60 dB
for an IF output signal of 100 dB
V.
[3]
The reference frequency rejection is the level of reference frequency sidebands (e.g. 62.5 kHz) related to the carrier. The rejection has
to be greater than 60 dB for an IF output signal of 100 dB
V.
Φ
osc
phase noise, carrier-to-noise
sideband
±10 kHz frequency offset; worst
case in the frequency range
84
87
-
dBc/Hz
±100 kHz frequency offset; worst
case in the frequency range
104
107
-
dBc/Hz
RSCp-p
ripple susceptibility of VCC
(peak-to-peak value)
4.75 V < VCC < 5.25 V; worst case
in the frequency range; ripple
frequency 500 kHz
20
-
mV
Table 21:
Oscillator …continued
VCC =5V; Tamb =25 °C; values are given for an IF amplier with 500 load (measured as shown in Figure 7 for the PAL
standard); unless otherwise specied.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Table 22:
IF amplier
VCC =5V; Tamb =25 °C; values are given for an IF amplier with 500 load (measured as shown in Figure 7 for the PAL
standard); unless otherwise specied.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
IF amplier
S22
output reection coefcient
magnitude; see Figure 6
-38
-
dB
phase; see Figure 6
-
0.36
-
deg
Zo
output impedance (RS +jLSω)RS at 36.15 MHz
-
79
-
CS at 36.15 MHz
-
9
-
nF
RS at 43.5 MHz
-
80
-
CS at 43.5 MHz
-
3
-
nF
Rejection at the IF output
INTdiv
level of divider interferences
in the IF signal
worst case
[1] --23
dB
V
INTXTAL
crystal oscillator interferences
rejection
VIF = 100 dBV; worst case in the
frequency range
66
-
dBc
INTfref
reference frequency rejection
VIF = 100 dBV; worst case in the
frequency range
66
-
dBc
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