TSH690 is a wide band RF amplifier from TE, featuring output power greater than 20 mW, gain of 28dB and working frequency of 450MHz.
The TSH690 is a wide band RF amplifier designed in an advanced bipolar process. It features a supply voltage range of 1.5V to 5V and provides more than 20 mW of adjustable output power. The device includes a bias pin that allows the user to adjust the amplification class from linear A-class through AB-class down to power-down mode.
The component is suited for driving power amplifiers in cellular phones (GSM, TDMA) where turn-on time is controlled by a voltage ramp. It is also dedicated as an output stage for 433 MHz and 868 MHz ISM transmitters, telemetering systems, remote controls, and cordless telephones.
| Frequency Range | 40 MHz to 1 GHz |
|---|---|
| Supply Voltage Range | 1.5 V to 5 V |
| Gain at 450 MHz | 28 dB (Typical) |
| Output Power at 900 MHz | +15.5 dBm (35 mW) at 3V |
| Operating Temperature Range | -40 to +85 °C |
The typical power gain (S21) at 450 MHz is 28 dB.
The bias pin allows adjusting the current consumption and amplification mode from linear A-class through AB-class to power-down mode.