LA77000V [SANYO]
Monolithic Linear IC VHF Band RF Modulator (US3, 4ch Compatible); 单片线性集成电路VHF波段射频调制器（ US3 ， 4通道兼容）
| 型号： | LA77000V |
| 厂家： | 
SANYO SEMICON DEVICE |
| 描述： | Monolithic Linear IC VHF Band RF Modulator (US3, 4ch Compatible) |
| 文件： | 总8页 (文件大小：205K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : ENN7875B
Monolithic Linear IC
VHF Band RF Modulator
(US3, 4ch Compatible)
LA77000V
Overview
The LA77000V is a VHF band RF module that supports US3, 4ch Compatible.
Functions
• RF VCO (AGC).
• RF Mixer.
• RF Buffer.
• Video clamp.
• White clipping.
• Audio FM.
• 4V regulator.
• Reference OSC.
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply rating
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
Conditions
Ratings
7.0
Unit
V
V
max
CC
Pd max
Ta ≤ 75°C
350*
-20 to +75
-55 to +150
mW
°C
Topr
Tstg
°C
* Mounted to the glass epoxy resin made board (114.3mm×76.1mm×1.6mm)
Operating Conditions at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
Recommended operating voltage
Operating voltage range
V
5.0
4.5 to 5.5
CC
V
op
V
CC
Any and all SANYO Semiconductor products described or contained herein do not have specifications
that can handle applications that require extremely high levels of reliability, such as life-support systems,
aircraft's control systems, or other applications whose failure can be reasonably expected to result in
serious physical and/or material damage. Consult with your SANYO Semiconductor representative
nearest you before using any SANYO Semiconductor products described or contained herein in such
applications.
SANYO Semiconductor 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
products described or contained herein.
N2206 / 91405 MS OT B8-7276 No.7875-1/8
LA77000V
Electrical Characteristics/Operating Characteristics at Ta = 25°C, V
= 5.0V, Measured with US3ch unless
CC
otherwise specified
Ratings
Unit
Parameter
Symbol
Conditions
min
28
typ
max
Current drain 1
I
I
1
2
No signal, pin 6 high
No signal, pin 6 low
No signal
41
53
mA
mA
V
CC
Current drain 2
15
3.7
3.2
1.2
22
3.9
3.5
2.2
29
CC
Regulator voltage
Vreg
Vanton
-R
4.1
3.8
Antenna driver voltage
Negative Resistance (pin7)
RF type
Pin 6 high, 220Ω load
CI≤100
V
kΩ
Video carrier frequency accuracy
Fp
Fp (US3ch): 61.25MHz
X’tal accuracy 30ppm
X’tal accuracy 30ppm
Ta = 4°C to 38°C
-25
-25
25
25
kHz
kHz
Video carrier frequency stability
Fpt
Video carrier output US
Audio carrier output ratio
Audio 2nd harmonic distortion
Audio 3rd harmonic distortion
Chroma beat
Pus
P/S
No signal (Note 1)
S: fp + 4.5MHz
85.5
14.5
50
87.5
16
89.5
17.5
dBµ
dB
P/S2
P/S3
P/CB
S2: fp + 2 × 4.5MHz
S3: fp + 3 × 4.5MHz
65
dB
45
55
dB
Vin = 3.58MHz, 0.6Vp-p
CB: fp + 920kHz
65
45
74
72
dB
dB
Video harmonic distortion
P/V2
Vin = 1MHz, 1Vp-p
V2: fp + 2MHz
Video type
Video modulation
White clip level
Differential gain
Mp
Vin = Stair step, 1Vp-p
Vin = Stair step, 1.5Vp-p
75
90
80
95
85
99
%
%
W
CL
D
G
Vin = 10-Stair step, 1Vp-p
(Note 2)
-5
-5
5
5
%
°C
dB
dB
Differential phase
D
P
Vin = 10-Stair step, 1Vp-p
(Note 2)
Video signal frequency response
Video S/N
R
fv
Vin = CW, 1Vp-p
0.75 MHz to 3.75MHz
Vin = 50%
-1.1
-0.4
50
0.3
V
S/N
4.2MHz LPF ON
Audio type
Audio carrier frequency accuracy
Audio modulation
Fs
X’tal accuracy 30ppm
-5
90
5
kHz
%
Ms
Ain = 1kHz, 1Vp-p
(Note 3)
100
110
Maximum audio modulation
Audio distortion
Msmx
THD
THD < 3%
400
%
%
Ain = 1 kHz, 1Vp-p
0.4
50
2
Audio S/N
A
Ain = 1 kHz, 1Vp-p
S/N
45
dB
Vin = Color bar, 1Vp-p
Note 1: 9.5dB added to the RFOUT value measured with a spectrum analyzer of the input impedance of 50Ω.
Note 2: Difference between 1 stair step and 8 stair step of 10 stair step.
Note 3: 100% = 25kHz modulation.
No. 7875-2/8
LA77000V
Package Dimensions
unit : mm
3178B
Block Diagram
No. 7875-3/8
LA77000V
Pin equivalent circuit
Pin
Symbol
Voltage
Circuit
Remarks
No.
1
P/S ADJ
2.7
Capacitor and additionally a Resistor may inserted between
the circuit and GND attenuate the audio inter-carrier level.
10kΩ
2kΩ
500Ω
20PF
1
2
AUDIO
IN
0
FM audio Input.
3kΩ
2
100kΩ
3
FM LPF
2.2
Control pin of output FM oscilator for the PLL phase detector
charge pump.
3
1kΩ
1kΩ
1kΩ
2.2V
4
5
GND
0
VIDEO
IN
2.6
Video Input
Clamped with sink chip.
100Ω
500Ω
5
6
CARR
OFF
-
Hi:14pin Hi RF Operating
Lo:14pin Lo RF Stop
100kΩ
25kΩ
6
20kΩ
Continued on next page.
No. 7875-4/8
LA77000V
Continued from preceding page.
Pin
Symbol
Voltage
Circuit
Remarks
No.
7
IN XTAL
3.5
4MHz oscillator inserted between the circuit and GND.
External input of the 4MHz signal possible. Insertion of
about 270kΩ resistor between the circuit and GND
ensurescompatibility with 3.58MHz of VTR chroma
sub-carrier.
100Ω
5PF
Insertion of about 270kΩ resistor between the circuit and
500Ω
V
ensurescompatibility with 27MHz of D-STB reference.
CC
7
8
CH
1.7
CH selector pin
US3: 4.2V or more
US4: 2.7V to 3.8V
33kΩ
8
5kΩ
17kΩ
9
PLL
GND
0
PLL type GND
RF type GND
10
11
12
RF GND
0
V
2
5.0
2.6
RF VCO type V
CC
CC
RF LPF
Control pin of output RF oscillator for the PLL phase
detector charge pump.
2.8V
2.2V
1kΩ
1kΩ
2kΩ
12
Continued on next page.
No. 7875-5/8
LA77000V
Continued from preceding page.
Pin
Symbol
Voltage
Circuit
Remarks
No.
13
V
1
5.0
3.5
V
CC
CC
14
ANT
DRV
Antenna SW driver pin.
15mA drive.
50kΩ
1kΩ
14
100kΩ
15
RF OUT
3.0
RF mixed signal output.
15
1.5Ω
16
REG
3.9
Regulator output.
16
56.5kΩ
25kΩ
No. 7875-6/8
LA77000V
Test Circuit
Sample Application Circuit 1 (USch) for VCR
No. 7875-7/8
LA77000V
Sample Application Circuit 2 (USch) for STB
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performance, characteristics, and functions of the described products in the independent state, and are
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This catalog provides information as of September, 2005. Specifications and information herein are subject
to change without notice.
PS No.7875-8/8
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