SANYO LA8123TT

Ordering number : ENA1273
Monolithic Linear IC
LA8123TT
For Digital CATV/Cable Modem Receiver
AGC Amplifier
Overview
LA8123TT is an AGC amplifier. It is ideally suited for use with Digital TV, Digital CATV, Cable modem receiver and IP
Telephony receiver.
Functions
• IF AGC control
• IF AGC amplifier
• Driver amplifier
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
Pin 1
7.0
Input voltages
Vin
Pin 2, 3, 4
V
-0.3 to VCC op+0.3
V
Circuit Current
I6
Pin 6 sink current
2
mA
I7
Pin 7 sink current
2
mA
Allowable Power Dissipation
Pd max
Ta ≤ 85°C *
310
mW
Operating Temperature Range
Topr
-20 to 85
°C
Storage Temperature Range
Tstg
-55 to 150
°C
* : Specified board : 45.0mm × 43.0mm ¯ 1.6mm, glass epoxy board.
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.
90308 MS PC 20060421-S00003 No.A1273-1/7
LA8123TT
Recommended Operating Conditions at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
Pin 1
5.0
Operating supply voltage range
VCC op
Pin 1
4.5 to 5.5
V
V
AGC control voltage range
Vagc
Pin 4
0 to 3.3
V
Electrical Characteristics at Ta = 25°C, VCC = 5.0V
Parameter
Symbol
Pin
Conditions
No.
Ratings
Test
circuit
min
Unit
typ
1
No signal
1
33
2, 3
fc : -3dB
1
30
max
Circuit current
Itotal
Input frequency range
fin
38
43
mA
70
MHz
Noise figure
NF
6, 7
V4 = 3.0V, f = 45MHz
2
Inter modulation
IM3
6, 7
V4 = 3.0V,
1
50
V4 = 3.0V, f = 45MHz
1
57
1
40
dB
1
45
dB
5
dB
dBc
f1 = 44MHz, f2 = 45MHz,
Output level = 104dBμV/tone
Total amplifier gain
G (AGC1)
6/2, 3
60
63
dB
7/2, 3
AGC range
GR (1)
GR (2)
6/2, 3
Output level = 110dBμV
7/2, 3
V4 = 0.3V to 3.0V, f = 45MHz
6/2, 3
Input level = 50dBμV
7/2, 3
V4 = 0.3V to 3.0V, f = 45MHz
Maximum Output Level
VO
6, 7
f = 45MHz
1
1.8
Output offset
dVO
6, 7
V4 = 3.0V, f = 45MHz
1
-0.5
Vp-p
0
0.5
dB
Output level = 110dBμV
(Pin 7 output) - (Pin 6 output)
Maximum gain
V4H
4
Maximum gain
1
3.0
3.3
V
V4L
4
Minimum gain
1
0
0.3
V
Zin
2, 3
V4 = 0V, f = 45MHz
3
AGC control voltage
Minimum gain
AGC control voltage
Input impedance
1//4.7
kΩ//pF
Package Dimensions
unit : mm (typ)
3245B
3.0
0.5
3.0
4.9
8
2
0.65
0.125
1.1MAX
(0.85)
0.25
0.08
1
(0.53)
SANYO : MSOP8(150mil)
No.A1273-2/7
LA8123TT
Block Diagram
VCC 1
8 GND
7 Driver output 1
IF input 1 2
6 Driver output 1
IF input 2 3
AGC
5 GND
AGC control 4
Test Circuit 1
1
VCC
8
1000pF
1000pF
TOKO
617DB-1674
2
7
3
6
200Ω
Spectrum Analyzer
1000pF
Vin
1000pF
Zo=50Ω
1000pF
AGC
5
4
AGC Voltage
200Ω 51Ω
1000pF
Output Voltage is divided by 50Ω / (200+50)Ω
Test Circuit 2
Noise FigureAnalyzer
1
VCC
8
1000pF
TOKO
617DB-1674
2
7
3
6
1000pF
200Ω
1000pF
200Ω 51Ω
1000pF
200Ω 51Ω
1000pF
200Ω 51Ω
1000pF
1000pF
AGC
5
4
AGC Voltage
1000pF
VCC
1000pF
Test Circuit 3
1
Network Analyzer
8
2
7
3
6
1000pF
51Ω
1000pF
AGC
4
AGC Voltage
5
1000pF
No.A1273-3/7
LA8123TT
Pin Function
Pin No.
Function
1
VCC
2
IF input.
Equivalent circuit
1
3
2
3
1.2kΩ
1.2kΩ
Bias
8
4
AGC control.
1
10kΩ
4
8
5
Gain control Switch.
6
Driver output.
1
7
6
7
20Ω
20Ω
4mA
4mA
8
8
GND
No.A1273-4/7
LA8123TT
Gain -- Vagc
70
60
VCC = 5.0V
f = 44MHz
Circuit 1
60
30
20
10
40
Ta
=
Ta
=
85
Ta
°C
=
-2
0°
C
40
30
20
10
0
0
– 10
– 10
– 20
25
°C
50
Voltage gain – dB
50
Voltage gain – dB
Gain -- Vagc
70
VCC = 4.5V
f = 44MHz
Circuit 1
– 20
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
0.5
1.0
1.5
Vagc – V
2.0
2.5
3.0
3.5
Vagc – V
Gain -- Vagc
70
VCC = 5.5V
f = 44MHz
Circuit 1
60
-2
30
0°
C
85
°C
Ta
=
40
Ta
=
Voltage gain – dB
50
20
10
0
– 10
– 20
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Vagc – V
Noise Figure -- Gain
35
25
20
15
Ta
=8
5°C
Ta
=20°
C
10
5
0
10
25
20
15
Ta
=
25°
C
10
5
15
20
25
30
35
40
45
50
55
60
65
0
10
15
20
25
30
35
40
45
50
55
60
65
Voltage gain – dB
Voltage gain – dB
Noise Figure -- Gain
35
VCC = 5.5V
f = 44MHz
Circuit 2
30
Noise Figure – dB
VCC = 5.0V
f = 44MHz
Circuit 2
30
Noise Figure – dB
Noise Figure – dB
30
Noise Figure -- Gain
35
VCC = 4.5V
f = 44MHz
Circuit 2
25
20
15
Ta
=8
5°
Ta
=- C
20°
C
10
5
0
10
15
20
25
30
35
40
45
50
55
60
65
Voltage gain – dB
No.A1273-5/7
LA8123TT
70
Gain -- f
70
60
Voltage gain – dB
80
VCC = 4.5V
Vagc = 3.0V
Circuit 1
50
40
30
30
10
10
3
5
7
2
100
3
5
0
10
7 1000
2
3
5
Frequency, f – MHz
80
70
7
2
100
3
5
7 1000
Frequency, f – MHz
Gain -- f
VCC = 5.5V
Vagc = 3.0V
Circuit 1
60
Voltage gain – dB
25
°C
40
20
2
Ta
=
50
20
0
10
Gain -- f
VCC = 5.0V
Vagc = 3.0V
Circuit 1
60
Ta
=Ta 20°C
=8
5°
C
Voltage gain – dB
80
Ta
=Ta 20°C
=8
5°C
50
40
30
20
10
0
10
2
3
5
7
2
100
3
5
7 1000
Frequency, f – MHz
110
Intermodulation Characteristic
VCC = 4.5V
f = 44MHz, 45MHz, Circuit 1
100
120
Output
Single output voltage/Tone – dBμ
Single output voltage/Tone – dBμ
120
Ta = -20°C
Ta = 85°C
90
80
70
60
Ta = 85°C
50
40
Ta = -20°C
IM3
30
40
50
60
70
80
90
100
110
Single output voltage/Tone – dBμ
110
Output
Ta = 25°C
100
90
80
70
60
50
Ta = 25°C
IM3
40
Differential input voltage/Tone – dBμ
120
110
Intermodulation Characteristic
VCC = 5.0V
f = 44MHz, 45MHz, Circuit 1
30
40
50
60
70
80
90
100
110
Differential input voltage/Tone – dBμ
Intermodulation Characteristic
VCC = 5.5V
f = 44MHz, 45MHz, Circuit 1
100
Output
Ta = -20°C
Ta = 85°C
90
80
70
60
50
Ta = 85°C
40
30
40
IM3
50
60
Ta = -20°C
70
80
90
100
110
Differential input voltage/Tone – dBμ
No.A1273-6/7
LA8123TT
SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using
products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd.
products described or contained herein.
SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all
semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or
malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise
to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt
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limited to protective circuits and error prevention circuits for safe design, redundant design, and structural
design.
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without the prior written consent of SANYO Semiconductor Co.,Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the
SANYO Semiconductor Co.,Ltd. product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed
for volume production.
Upon using the technical information or products described herein, neither warranty nor license shall be granted
with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third
party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's
intellctual property rights which has resulted from the use of the technical information and products mentioned
above.
This catalog provides information as of September, 2008. Specifications and information herein are subject
to change without notice.
PS No.A1273-7/7