DESCRIPTION
The TK11052 is an accurate temperature controller IC for use over the -30 to +105 °C temperature range. The TK11052 monolithic bipolar integrated circuit contains a temperature sensor, stable voltage reference and two comparators, making the device very useful as an on/off thermostat. Two external resistors easily set the sensing temperature threshold and hysteresis of each thermostat. Its wide operating voltage range of 2.7 to 6.0 V makes this IC suitable for a number of applications requiring an accurate thermostat.

FEATURES
*Internal Temperature Sensor, Voltage Reference and Two Comparators with
*Temperature Threshold and Hysteresis Set by Only Two External Resistors
*Output Logic:
- Low to High with Increasing Temp. by OUTPUT1
- High to Low with Increasing Temp. by OUTPUT2
*Very Wide Operating Supply Range (VCC = 2.7 to 6.0 V)
*Miniature Package (SOT23L-8)
*Minimum External Parts Count
*Low Power Consumption
*Very Wide Temperature Range

APPLICATIONS
*Home and Industrial Thermostats
*Home Appliance Temperature Control
*Notebook Computer Temperature Monitor
*Pentium Processor Temperature Monitor
*Power Supply Overtemperature Protection
*Copy Machine Overtemperature Protection
*System Overtemperature Protection

TK11052MTL  

TK11052 - THERMOSTAT IC

DESCRIPTION
The TK112xxC is a low dropout linear regulator with a builtin electronic switch. The internal switch can be controlled by TTL or CMOS logic levels. The device is in the “on” state when the control pin is pulled to a logic high level. An external capacitor can be connected to the noise bypass pin to lower the output noise level to 30 μVrms.
An internal PNP pass transistor is used to achieve a low dropout voltage of 170 mV (typ.) at 200 mA load current. The TK112xxC has a very low quiescent current of 65 μA at no load and 1.8 mA with a 100 mA load.The internal thermal shut down circuitry limits the junction temperature to150 °C.
The load current is internally monitored and the device will shut down in the presence of a short circuit or overcurrent condition at the output.
The TK112xxCM circuit features very high stability in both DC and AC. An output capacitor of 0.1 F provides stable operation for VOUT is higher or equal to 2.5 V. Any type of capacitor can be
used; however, the larger this capacitor is, the better the overall characteristics are. The ripple rejection ratio is 84 dB at 400 Hz, and 80 dB at 1 kHz.
The TK112xxC is available in the SOT23L-6 surface mount package.

FEATURES
*High Precision Voltage at ± 1.5% or ± 50 mV
*Active High On/Off Control
*Very Low Dropout Voltage: (Vdrop = 105 mV at 100 mA)
*Very Good Stability: CL = 0.1uF is Stable for any Type Capacitor with Vout higher or equal to 1.8 V (Iout > 0.5 mA)
*Excellent Ripple Rejection Ratio (80 dB @ 1 kHz)
*Very Low Quiescent Current (Iq = 65 uA at Iout = 0 mA)
*Peak Output Current is 480 mA
*SOT23L-6 Surface Mount Package
*Very Low Noise
*Built-in Reverse Bias Protection
*Internal Thermal Shutdown
*Short Circuit Protection

APPLICATIONS
*Battery Powered Systems
*Cellular Telephones
*Pagers
*Personal Communications Equipment
*Portable Instrumentation
*Portable Consumer Equipment
*Radio Control Systems
*Toys
*Low Voltage Systems

TK11215C, TK11216C, TK11217C, TK11218C, TK11219C, TK11220C, TK11221C, TK11222C, TK11223C, TK11224C, TK11225C, TK11226C, TK11227C, TK11228C, TK11229C,TK11230C, K11231C, TK11232C, TK11233C, TK11234C, TK11235C, TK11236C, TK11237C, TK11238C, TK11239C, TK11240C ,TK11241C,TK11242C, TK11243C, TK11244C, TK11245C, TK11246C, TK11247C, TK11248C, TK11249C, TK11250C  

TK112XXCM - VOLTAGE REGULATOR WITH ON/OFF SWITCH

DESCRIPTION
Operating from a single +5 V supply, the TK15407 is a dual video driver IC that takes standard video signals as analog inputs and provides buffered analog outputs for driving 150 Ω loads (series 75 Ω resistor and 75 Ω cable load).
Both amplifiers have a fixed gain of 6 dB and can be used in series for 12 dB gain.
The luminance (Y) input is clamped at 1.29 V and amplified 6 dB to produce 2 VP-P (typical) into a series 75 Ω resistor and 75 Ω cable load.
The internal 1.5 k SAG function resistor provides gain compensation for low frequency signals.
The chromanance (C) input is biased at 2.6 V and amplified 6 dB to produce 1.1 VP-P (typical) into a series 75 Ω resistor and 75 Ω cable load.
During standby (Pin 3 grounded), the TK15407 consumes only 119 μW of power.
Nominal power dissipation (no input) is typically 76 mW.
The TK15407 is ideally suited for S-VHS systems.
The TK15407M is available in the very small SOT23L-8 surface mount package.

FEATURES
*Fixed Gain (6 dB)
*Internal 75 Ω Drivers
*Very Small Output Capacitor Using SAG Function Pin
*Active High ON/OFF Control
*Very Low Standby Current (typ. ISTBY ≤ 25 μA)
*Very Small SOT23L-8 Package

APPLICATIONS
*Video Equipment
*Digital Cameras
*CCD Cameras
*TV Monitors
*Video Tape Recorders
*LCD Projectors

TK15407MTL  

TK15407 - 75 Ω VIDEO LINE DRIVER

Description
The TOKO DAC2450CT1T is a compact, vertically polarized, dielectric antenna specifically designed for 2.450 GHz applications including IEEE 802.11b/g wireless networking.
The antenna unit consists of a dielectric element with a 50Ω center terminal permitting
direct connection to a 50Ω printed circuit board pattern without a matching circuit.

Features
* Miniature footprint: 16mm diameter
* Low profile: 6.5mm max.
* Center Frequency: 2450 MHz
* Bandwidth: ±50 MHz
* Peak Gain: Less than +2.14 dBi (0 dBi typ.)
* Impedance: 50 Ω
* Weight: 4.3 grams
* Operating temperature: -10°C to +60°C
* Storage temperature: -20°C to +85°C  

DAC2450CT1T - 2.45 GHZ DIELECTRIC ANTENNA

DESCRIPTION
 The TK10931V is an IF system IC designed for communications equipment.
The TK10931V contains the following functions:
Oscillator
Mixer
FM IF Limiter
Quadrature Detector
AM AGC Amplifier
Squelch Noise Amplifier
AM Detector
Squelch Rectifier
RSSI Output
RF AGC Output
Squelch Comparator
The TK10931V is suited for Amateur radios, CB radios, and Wide-Band receivers.
The TK10931V is available in the very small TSSOP-24 surface mount package.

FEATURES
* Simultaneous Operation (AM Section, FM Section)
* AM Section with ON/OFF Control Input
* AGC Amplifier Control Input
* AGC Amplifier Output
* High-speed FM Limiter Amplifier (Up to 11 MHz)
* RF AGC Output (for External RF Amplifier)
* Built-in Noise Squelch Circuit (Noise Amplifier, Rectifier, Comparator)
* Wide Range Voltage Operation (2.5 V to 8.5 V)
* Very Small Package (TSSOP-24)

APPLICATIONS
* Amateur Radios
* CB Radios
* Utility Radios
* Scanner Receivers

 

TK10931V - NARROW BAND FM/AM IF SYSTEM