Ordering number : EN8094A
Monolithic Linear IC
LA7784FN
Overview
For Digital CATV
Down Converter IC
The LA7784FN is a digital out of band tuner for CATV. It supports RF input from 50 to 280MHz and supports the
DOCSIS (USA) and Euro-DOCSIS (Europe) standards.
Functions
•
RF Mixer
•
RF AGC amplifier
•
Driver for SAW filter
•
IF AGC amplifier
•
IF post amplifier for AD
Specifications
Maximum Ratings
at Ta = 25°C
Parameter
Maximum Supply Voltage
Circuit Voltages
Circuit Current
Allowable Power Dissipation
Operating Temperature
Storage Temperature
* On the Board 30×50×0.8mm, FR4, 4 layer.
Symbol
VCC max
V max
I 10,11
Pd max
Topr
Tstg
Conditions
Pin 4, 12, 18, 19, 20, 21, 27, 28
Pin 5
Pin 10, 11 sink current
Ta≤70°C
Ratings
6.0
VCC
2
750*
-20 to +70
-55 to +150
Unit
V
V
mA
mW
°C
°C
Recommended Operating Conditions
at Ta = 25°C
Parameter
Recommended Supply Voltage
Operating Supply Voltage Range
Symbol
VCC
VCC op
Conditions
Pin 4, 12, 18, 19, 20, 21, 27, 28
Pin 4, 12, 18, 19, 20, 21, 27, 28
Ratings
5.0
4.5 to 5.5
Unit
V
V
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer
'
s products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer
'
s products or
equipment.
42507 MS PC 20061215-S00001 / 61005 MS IM B8-8634 No.8094-1/8
AC Characteristics
at Ta = 25°C, VCC = 5.0V
Parameter
Circuit Current
RF Input Frequency Range
RF AGC Range
Mixer Conversion Gain
Symbol
I total
f (RF)
GR1
CG1
Pin No.
4, 12, 18, 19, 20, 21, 27, 28
22, 23
27, 28
The pin 27 output for the
input to pins 22 and 23.
The pin 28 output for the
input to pins 22 and 23.
Mixer Inter Modulation 1
IM3 1
The pin 27 output for the
input to pins 22 and 23.
The pin 28 output for the
input to pins 22 and 23.
IF Input Frequency Range
IF Amplifier Gain
f (IF)
G (AGC)
31, 32
The pin 10 output for the
input to pins 31 and 32.
The pin 11 output for the
input to pins 31 and 32.
IF Inter Modulation 2
IM3 2
The pin 10 output for the
input to pins 31 and 32.
The pin 11 output for the
input to pins 31 and 32.
IF AGC Range
IF AGC Output Level
GR2
VO (IF) 1
VO (IF) 2
10, 11
10
11
IF Output Level < ±1dB
Single output
Single output
3
5
1.0
1.0
dB
Vp-p
Vp-p
Output = 110dBµV
40
50
dB
fc : -3dB
V5 = 2.5V
30
51
55
100
59
dB
MHz
Input = 75dBµV
V5 = 2.5V
40
50
dB
Conditions
min
No Signal
fc : -3dB
V5 = 2.5 to 0V
V5 = 2.5V
80
50
45
19
53
22
25
dB
Ratings
typ
105
max
130
280
mA
MHz
dB
Unit
Package Dimensions
unit : mm
3308
TOP VIEW
5.0
17
24
(1.6)
BOTTOM VIEW
Exposed Die-Pad
Do Not Connect
25
(0.05)
16
9
(1.6)
5.0
32
8
0.4
1
(1.1)
0.16
0
0.85max
(0.8)
0.45
LASER MARKED
INDEX
12
SANYO : VQFN32J(5.0X5.0)
MCU
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