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參數(shù)資料
| 型號(hào)： | TDA6509TT |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 調(diào)諧器 |
| 英文描述： | 3-band mixer/oscillator and PLL for terrestrial tuners |
| 中文描述： | 3-BAND, VIDEO TUNER, PDSO32 |
| 封裝： | 6.10 MM, 0.65 MM PITCH, PLASTIC, MO-153, SOT487-1, TSSOP-32 |
| 文件頁數(shù)： | 18/42頁 |
| 文件大小： | 274K |
| 代理商： | TDA6509TT |
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2005 Mar 25
18
Philips Semiconductors
Product specification
3-band mixer/oscillator and PLL for
terrestrial tuners
TDA6508; TDA6508A;
TDA6509; TDA6509A
Notes
1.
2.
The range of f
RF
is defined by the range of f
osc
and I; f
pc
= picture carrier frequency.
V
i
is the level of f
RF
(100% amplitude modulated with 11.89 kHz) that causes the frequency of the oscillator signal to
deviate by 750 Hz; it produces sidebands 30 dB below the level of the oscillator signal.
Limits are related to the tank circuits used in Fig.27; frequency bands may be adjusted by the choice of external
components.
The oscillator frequency shift is defined as a change in oscillator frequency when the supply voltage varies from
V
CC
= 5 V to 4.75 V (or 5 V to 4.5 V) or from V
CC
= 5 V to 5.25 V (or 5 V to 5.5 V). The oscillator is free running
during this measurement.
The oscillator frequency drift is defined as a change in oscillator frequency when the ambient temperature varies from
T
amb
= 25
°
C to 50
°
C (60
°
C max.) or from T
amb
= 25
°
C to 0
°
C. The oscillator is free running during this
measurement. For
T =
±
25
°
C measurements, the tank circuit has temperature compensated values;
for
T = 35
°
C measurements, the tank circuit has non-temperature compensated values.
The ripple susceptibility is measured with a 500 kHz ripple signal applied to the supply voltage. The level of the ripple
signal is increased until a difference of 53.5 dB occurs between the level of the IF carrier, fixed at 110 dB
μ
V for
TDA6508; TDA6509 or 100 dB
μ
V for TDA6508A; TDA6509A, and the sideband components.
FM modulation of the local oscillator resulting from I
2
C-bus communication is measured at the IF output using a
modulation analyzer with a peak-to-peak detector and a post detection filter of 20 Hz to 100 kHz. I
2
C-bus messages
sent to the tuner address the tuner without changing the contents of the PLL registers. The maximum I
2
C-bus clock
rate is 400 kHz. The I
2
C-bus pull-up resistor values are 1.5 k
.
3.
4.
5.
6.
7.
FM
mod
FM modulation caused by
I
2
C communication
worst case; note 7
3.0
kHz
W
EAK SIGNAL BOOSTER
G
v(WSB)
gain increase when the
weak signal booster mode is
activated
TDA6508; TDA6509;
IF = 36.15 MHz
TDA6508A; TDA6509A;
IF = 36.15 MHz
13
16
dB
7
10
dB
IF
PREAMPLIFIER
f
O(IF)
Z
o
IF operational frequency
output impedance
(R
S
+
j
ω
L
S
)
5
60
MHz
TDA6508; TDA6509
R
S
at 36.15 MHz
L
S
at 36.15 MHz
TDA6508A; TDA6509A
R
S
at 36.15 MHz
L
S
at 36.15 MHz
100
52
nH
40
12
nH
R
EJECTION AT THE
IF
OUTPUT
INT
div
level of divider interferences
in the IF signal
crystal oscillator
interferences rejection
reference frequency
rejection
channel SO2 beat
worst case; note 8
24
dB
μ
V
IR
xtal
worst case in the frequency range;
note 9
worst case in the frequency range;
f
ref
= 62.5 kHz; note 10
V
pc
= 80 dB
μ
V; note 11
60
80
dBc
R
ref
60
66
dBc
INT
SO2
60
66
dBc
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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