SL1466 데이터 시트보기 (PDF) - Zarlink Semiconductor Inc
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SL1466 Datasheet PDF : 18 Pages
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SL1466
NOTE:
1. Product of input modulation f1 at 4.43MHz p-p deviation and f2 at 6MHz, 2MHz p-p deviation, (PAL
chroma and sound subcarriers).
2. Ratio of luminance bar amplitude (100% white), 13.5MHz p-p deviation, to output rms noise in 6MHz
bandwidth with no input modulation.
3. The above characteristics were measured in the Application circuit shown in Fig.10, with an input power of
-50dBm andƒ(RFIN) =480MHz, unless otherwise stated.
ABSOLUTE MAXIMUM RATINGS
All voltages are referred to VEE at 0V
Characteristic
Min
Max
Units
Conditions
Supply voltage
-0.3
7
RF input voltage
2.5
Storage temperature
-55
125
Junction temperature
150
QP 28 package thermal
93
resistant, chip to ambient
QP 28 package thermal
34
resistance, chip to case
ESD protection
2
V
Vp-p
°C
°C
°C/W
°C/W
kV
Mil std 883B method 30115 cat 1.
PIN DESCRIPTION
PIN NO
1
2
3
4
5
PIN NAME
GND
DIGFLO
DIGFHI
AFCSET
AFCWINDOW
6
OSC VCC
7
OSC+
8
OSC-
9
OSC GND
10
VCO GAIN SET
11
VIDEO DRIVE
12
VIDEO POL SELECT
13
NC
14
NC
15
RF AGC CONTROL
16
NC
17
IF AGC SET
18
AGC TIME CONSTANT
DESCRIPTION
(Note units are MHz, Amps and Volts)
Chip ground
Flag = high when F (local oscillator) < F (IFIN) - F (WINDOW)/2
Flag = high when F (local oscillator) >F (IFIN) + F (WINDOW)/2
Connected to VCC
Control input current sink sets width of AFCWINDOW
F =2250 Ko x I where I is the AFCWINDOW current
F is the window width and Ko is the VCO gain
Oscillator VCC
External tank
External tank
Oscillator ground
Control voltage input to set VCO GAIN. Connect to VCC
Video output (1KΩ, 1.8V p-p)
Control voltage input to set Video polarity. 0 Volts = inverted,
5 Volt = normal
Control output current to tuner AGC control port. See Fig. 4.
Connect to VCC via 6k8 Ohm resistor
Control input current source. Pulse at carrier frequency F(IFIN) with
mark/space proportional to applied device AGC gain.
Use external R-C to set time constant. 47K, 100nF
3
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