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參數資料
| 型號： | CD74HCT7046 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Phase-Locked Loop with VCO and Lock Detector |
| 中文描述： | 鎖相環與VCO和鎖定檢測回路 |
| 文件頁數： | 1/26頁 |
| 文件大小： | 302K |
| 代理商： | CD74HCT7046 |
1
Data sheet acquired from Harris Semiconductor
SCHS218C
Features
Center Frequency of 18MHz (Typ) at V
CC
= 5V,
Minimum Center Frequency of 12MHz at V
CC = 4.5V
Choice of Two Phase Comparators
- Exclusive-OR
- Edge-Triggered JK Flip-Flop
Excellent VCO Frequency Linearity
VCO-Inhibit Control for ON/OFF Keying and for Low
Standby Power Consumption
Minimal Frequency Drift
Zero Voltage Offset Due to Op-Amp Buffer
Operating Power-Supply Voltage Range
- VCO Section . . . . . . . . . . . . . . . . . . . . . . . . . .3V to 6V
- Digital Section . . . . . . . . . . . . . . . . . . . . . . . .2V to 6V
Fanout (Over Temperature Range)
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
Wide Operating Temperature Range . . . -55
o
C to 125
o
C
Balanced Propagation Delay and Transition Times
Significant Power Reduction Compared to LSTTL
Logic ICs
HC Types
- 2V to 6V Operation
- High Noise Immunity: N
IL
= 30%, N
IH
= 30% of V
CC
at V
CC
= 5V
HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
V
IL
= 0.8V (Max), V
IH
= 2V (Min)
- CMOS Input Compatibility, I
l
≤
1
μ
A at V
OL
, V
OH
Applications
FM Modulation and Demodulation
Frequency Synthesis and Multiplication
Frequency Discrimination
Tone Decoding
Data Synchronization and Conditioning
Voltage-to-Frequency Conversion
Motor-Speed Control
Related Literature
- AN8823, CMOS Phase-Locked-Loop Application
Using the CD74HC/HCT7046A and
CD74HC/HCT7046A
Description
The
silicon-gate CMOS devices, specified in compliance with
JEDEC Standard No. 7A, are phase-locked-loop (PLL)
circuits that contain a linear voltage-controlled oscillator
(VCO), two-phase comparators (PC1, PC2), and a lock
detector. A signal input and a comparator input are common
to each comparator. The lock detector gives a HIGH level at
pin 1 (LD) when the PLL is locked. The lock detector
capacitor must be connected between pin 15 (C
LD
) and pin
8 (Gnd). For a frequency range of 100kHz to 10MHz, the
lock
detector
capacitor
should
respectively.
CD74HC7046A
and
CD74HCT7046A
high-speed
be
1000pF
to
10pF,
The signal input can be directly coupled to large voltage
signals, or indirectly coupled (with a series capacitor) to
small voltage signals. A self-bias input circuit keeps small
voltage signals within the linear region of the input amplifiers.
With a passive low-pass filter, the 7046A forms a second-
order loop PLL. The excellent VCO linearity is achieved by
the use of linear op-amp techniques.
Ordering Information
PART NUMBER
TEMP. RANGE
(
o
C)
PACKAGE
CD74HC7046AE
-55 to 125
16 Ld PDIP
CD74HC7046AM
-55 to 125
16 Ld SOIC
CD74HC7046AMT
-55 to 125
16 Ld SOIC
CD74HC7046AM96
-55 to 125
16 Ld SOIC
CD74HCT7046AE
-55 to 125
16 Ld PDIP
CD74HCT7046AM
-55 to 125
16 Ld SOIC
CD74HCT7046AMT
-55 to 125
16 Ld SOIC
CD74HCT7046AM96
-55 to 125
16 Ld SOIC
NOTE: When ordering, use the entire part number. The suffix 96
denotes tape and reel. The suffix T denotes a small-quantity reel
of 250.
February 1998 - Revised October 2003
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
2003, Texas Instruments Incorporated
0.1
CD74HC7046A,
CD74HCT7046A
Phase-Locked Loop
with VCO and Lock Detector
[ /Title
(CD74
HC704
6A,
CD74
HCT70
46A)
/Sub-
ject
(Phase-
Locked
Loop
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相關代理商/技術參數 |
參數描述 |
|---|---|
| CD74HCT7046AE | 功能描述:鎖相環 - PLL High Speed CMOS w/VCO & Lock Detect RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray |
| CD74HCT7046AE WAF | 制造商:Harris Corporation 功能描述: |
| CD74HCT7046AE | 制造商:Texas Instruments 功能描述:IC 74HCT CMOS 74HCT7046 DIP16 |
| CD74HCT7046AEE4 | 功能描述:鎖相環 - PLL High Speed CMOS w/VCO & Lock Detect RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray |
| CD74HCT7046AEG4 | 功能描述:IC PLL W/VCO/LOCK DETECT 16DIP 制造商:texas instruments 系列:74HCT 包裝:管件 零件狀態:在售 類型:鎖相環路（PLL） PLL:是 輸入:CMOS 輸出:CMOS 電路數:1 比率 - 輸入:輸出:1:2 差分 - 輸入:輸出:無/無 頻率 - 最大值:38MHz 分頻器/倍頻器:無/無 電壓 - 電源:4.5 V ~ 5.5 V 工作溫度:-55°C ~ 125°C 安裝類型:通孔 封裝/外殼:16-DIP（0.300"，7.62mm） 供應商器件封裝:16-PDIP 基本零件編號:74HCT7046 標準包裝:25 |
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