tda6500 NXP Semiconductors, tda6500 Datasheet - Page 21

• Manufacturer Part Number: tda6500
• Description: 5 V Mixer/oscillator And Synthesizer For Pal And Ntsc Standards
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 21:
V
standard); unless otherwise specified.
[1]
[2]
[3]
[4]
[5]
Table 22:
V
standard); unless otherwise specified.
[1]
[2]
[3]
9397 750 15057
Product data sheet
Symbol
RSC
Symbol
IF amplifier
S
Z
Rejection at the IF output
INT
INT
INTf
CC
CC
o
22
osc
div
XTAL
= 5 V; T
Limits are related to the tank circuits used in
measurement circuit to other frequency bands or NTSC applications.
The frequency shift is defined as a change in oscillator frequency when the supply voltage varies from V
from V
The frequency drift is defined as a change in oscillator frequency when the ambient temperature varies from T
from T
Switch-on drift is defined as the change in oscillator frequency between 5 s and 15 min after switch on. The oscillator is free running
during this measurement.
The supply ripple susceptibility is measured in the circuit according to
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.
= 5 V; T
This is the level of divider interferences close to the IF. For example channel S3: f
input must be left open (i.e. not connected to any load or cable); the HOSCIN1 and HOSCIN2 inputs are connected to a hybrid.
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.
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.
ref
p-p
amb
CC
Oscillator
IF amplifier
amb
amb
Parameter
phase noise, carrier-to-noise
sideband
ripple susceptibility of V
(peak-to-peak value)
= 5 V to 5.25 V (5.5 V). The oscillator is free running during this measurement.
Parameter
output reflection coefficient
output impedance (R
level of divider interferences
in the IF signal
crystal oscillator interferences
rejection
reference frequency rejection V
= 25 C to 0 C. The oscillator is free running during this measurement.
= 25 C; values are given for an IF amplifier with 500
= 25 C; values are given for an IF amplifier with 500
…continued
S
+ jL
CC
S
) R
Figure 7
Conditions
case in the frequency range
case in the frequency range
4.75 V < V
in the frequency range; ripple
frequency 500 kHz
Conditions
magnitude; see
phase; see
C
R
C
worst case
V
frequency range
frequency range
10 kHz frequency offset; worst
100 kHz frequency offset; worst
IF
IF
S
S
S
S
5 V mixer/oscillator and synthesizer for PAL and NTSC standards
at 36.15 MHz
at 36.15 MHz
at 43.5 MHz
at 43.5 MHz
= 100 dB V; worst case in the
= 100 dB V; worst case in the
Rev. 02 — 14 June 2005
for a PAL application. The choice of different external components adapts the
CC
Figure 6
< 5.25 V; worst case
Figure 6
Figure 7
load (measured as shown in
load (measured as shown in
using a spectrum analyzer connected to the IF output. An
osc
= 158.15 MHz,
TDA6500; TDA6501
[5]
[1]
[2]
[3]
Min
84
104
15
Min
-
-
-
-
-
-
-
60
60
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
1
4
f
osc
CC
Typ
87
107
20
Typ
38
0.36
79
9
80
3
-
66
66
= 39.5375 MHz. The LOSCIN
= 5 V to 4.75 V (4.5 V) or
Figure 7
Figure 7
amb
= 25 C to 50 C or
Max
-
-
-
Max
-
-
-
-
-
-
23
-
-
for the PAL
for the PAL
Unit
dBc/Hz
dBc/Hz
mV
Unit
dB
deg
nF
nF
dB V
dBc
dBc
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