DataSheet26.com

NJ88C33 PDF даташит

Спецификация NJ88C33 изготовлена ​​​​«Zarlink Semiconductor» и имеет функцию, называемую «Frequency Synthesiser».

Детали детали

Номер произв NJ88C33
Описание Frequency Synthesiser
Производители Zarlink Semiconductor
логотип Zarlink Semiconductor логотип 

14 Pages
scroll

No Preview Available !

NJ88C33 Даташит, Описание, Даташиты
www.DataSheet4U.com
NJ88C33
Frequency Synthesiser (I2C BUS Programmable)
Advance Information
DS2429 - 3.2 September 1994
The NJ88C33 is a synthesiser circuit fabricated on Zarlink
Semiconductor's 1.4 micron CMOS process, assuring very
high performance. It is I2C compatible and can also be
programmed at up to 5MHz. It contains a 16-bit R counter, a
12-bit N counter and a 7-bit A counter.
A digital phase comparator gives improved loop stability
with current source outputs to reduce loop components. A
voltage doubler is provided for the loop driver to improve
control voltage range to the VCO when operating at low supply
voltages.
DP14
FEATURES
s Easy to Use
s Low Power Consumption (15mW)
s Single Supply 2.5V to 5.5V
s Digital Phase Comparator with Current Source
Outputs
s Serial (I2C Compatible) Programming, 5MHz max
s Channel Loading in 8µs
s 150MHz Input Frequency Without Prescaler at 4.5V
(52MHz at 2.7V)
s Standby Modes
s Use of Two-Modulus Prescaler is Possible
APPLICATIONS
s Cordless Telephones (CT2, DECT)
s Cellular Telephones (GSM, PCN, ETACS)
s Hand Held Marine Radios
s Sonarbuoys
s Video Clock generators
MP14
Fig.1 Pin connections (not to scale) - top views
ABSOLUTE MAXIMUM RATINGS
Supply voltage, VDD
Input voltage, VIM1
Output voltage on pin 13, VIM2
Storage temperature, Tstg
-0.3V to 7V
-0.3 to VDD +0.3V
-VDD to 0V
-55°C to +125°C
ORDERING INFORMATION
NJ88C33 MA DP (Industrial - Plastic DIL package)
NJ88C33 MA MP (Industrial - Miniature Plastic DIL package)
Fig.2 Simplified block diagram of NJ88C33









No Preview Available !

NJ88C33 Даташит, Описание, Даташиты
NJ88C33
PIN DESIGNATIONS
Pin Pin
No. Name
Description
1 VDD Supply voltage (normally 5V or 3V).
2 RI Reference frequency input from an accurate source, normally a crystal oscillator. The input is normally
an AC coupled sinewave but may be a DC coupled square wave.
3 S/D Single/dual modulus operating mode selection input. Single modulus operation is selected by driving
the pin low. 'High' selects dual modulus mode.
4 SDA I2C bus data input pin. It is also an open-drain output for generating I2C bus acknowledge pulses.
5 SCL I2C bus clock input. It can be clocked at up to 5MHz.
6 PORT Output control pin, which can be programmed via the I2C bus. It can be connected to the S/D pin to
select single or dual modulus mode under bus control.
7 MOD Modulus control pin. It is high in single modulus mode but switches in dual modulus operation. In dual
modulus mode, MOD remains low during operation of the A counter until A=0; MOD then remains high
until N=0, when both counters are reloaded. It can be programmed via the I2C bus as an open-drain
or push-pull output.
8 FI Frequency input from a VCO or prescaler. The input is normally an AC coupled sinewave but may be
a DC coupled square wave.
9 GND2 Dedicated ground for the FI input buffer. It should be connected to the VCO ground or the prescaler
ground, if used. Any noise on this pin will affect the performance of the VCO loop.
10 FVN Open-drain output from the N counter.
11 GND1 Ground supply pin (global).
12 PD Tristate current output from the phase detector. The polarity of the output can be programmed via the
I2C bus.
13 C Voltage doubler output. The operation of the doubler can be controlled via the I2C bus. In applications
where the voltage doubler is switched off, this pin should be connected to GND1; a reservior capacitor
should be connected from this pin to GND1 for applications where it is switched on.
14 LD Open-drain lock detect output - requires integration if used.
OPERATING RANGE
Test conditions (unless otherwise stated):
PLL locked, RI = 10MHz
Characteristic
Supply voltage
Ambient temperature
Supply current
Single modulus
Value
Symbol
Unit
Min. Typ. Max.
Conditions
VDD 2.5 5 5.5 V
Tamb
-40
+85 °C
IDD 2.1 3.0 mA FI = 50MHz, VFI = 150mVrms, N,R > 1000 without
voltage doubler, VDD = 5V, Tamb = 25°C
Dual modulus
IDD
2 3.0 mA FI = 10MHz, VFI = 500mVrms, N,R > 1000 without
voltage doubler, VDD = 5V, Tamb = 25°C
Standby mode
Standby mode
IDD
IDD
1
1.0 1.5
µA FI = 50MHz, VFI = 150mVrms, preamp off, divider off,
VDD = 5V, Tamb = 25°C
mA FI = 50MHz, VFI = 150mVrms, preamp on, divider off,
VDD = 5V, Tamb = 25°C
2









No Preview Available !

NJ88C33 Даташит, Описание, Даташиты
NJ88C33
3










Скачать PDF:

[ NJ88C33.PDF Даташит ]

Номер в каталогеОписаниеПроизводители
NJ88C30VHF SYNTHESISERZarlink Inc
Zarlink Inc
NJ88C33Frequency Synthesiser (I2C BUS Programmable)Mitel Networks Corporation
Mitel Networks Corporation
NJ88C33Frequency SynthesiserZarlink Semiconductor
Zarlink Semiconductor

Номер в каталоге Описание Производители
TL431

100 мА, регулируемый прецизионный шунтирующий регулятор

Unisonic Technologies
Unisonic Technologies
IRF840

8 А, 500 В, N-канальный МОП-транзистор

Vishay
Vishay
LM317

Линейный стабилизатор напряжения, 1,5 А

STMicroelectronics
STMicroelectronics

DataSheet26.com    |    2020    |

  Контакты    |    Поиск