TDA6500TT NXP Semiconductors, TDA6500TT Datasheet - Page 28

• Manufacturer Part Number: TDA6500TT
• Manufacturer: NXP Semiconductors

Specifications of TDA6500TT

• Pin Count: 32
• Screening Level: Commercial
• Package Type: TSSOP
• Lead Free Status / Rohs Status: Compliant

Philips Semiconductors
9397 750 15057
Product data sheet
Fig 12. Cross modulation measurement in low band
V
Wanted output signal at f
Unwanted output signal at f
The level of unwanted signal is measured by causing 0.09 % AM modulation in the wanted signal.
PAL: IF = 38.9 MHz; L = 680 nH; C = 25.9 pF and attenuation = 10.2 dB
e
e
w
o
u
= V
meas
50
50
AM = 30%
unwanted
------------------------------- -
wanted
source
source
2 kHz
signal
signal
50
2
50
Fig 10. Noise figure (NF) measurement in low band
Fig 11. Maximum RF input level without lock-out in low band
+
L
2 2
RFpix
B
A
HYBRID
RFpix
NF = NF
PAL: IF = 38.9 MHz; L = 680 nH; C = 25.9 pF
Z
PAL: IF = 38.9 MHz; L = 680 nH; C = 25.9 pF
= V
; V
i
SOURCE
>> 50
NOISE
e
meas
o
C
D
+ 5.5 MHz.
= 100 dB V.
50
+ attenuation
meas
50
5 V mixer/oscillator and synthesizer for PAL and NTSC standards
V
loss of input circuit
i
source
V
signal
= 2
LBIN
meas
Rev. 02 — 14 June 2005
BNC
DUT
V
voltmeter
V
meas
RMS
CIRCUIT
IFOUT
INPUT
= V
50
meas
RIM
+ 6 dB
V
V
i
o
LBIN
LBIN
C
DUT
L
TDA6500; TDA6501
voltmeter
DUT
RMS
IFOUT
V V
IFOUT
attenuator
meas
18 dB
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
C
(PAL & OFDM)
C
38.9 MHz
FILTER
L
L
spectrum
analyzer
modulation
50
analyzer
FIGURE
METER
fce219
NOISE
fce827
fce214
50
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