Datasheets

Hardware components

KT0803K

Title: Monolithic Digital Stereo FM Transmitter Radio-Station-on-a-Chip

Company: KT Micro Inc.

Details: KT0803K, our new generation of low cost Monolithic Digital FM Transmitter, is designed to process high-fidelity stereo audio signal and transmit modulated FM signal over a short range. It’s based on the architecture of awardwinning KT0801 and it’s also an upgrade of KT0803. The additional features added to KT0803K are increased transmission power up to 113 dBuV, auto level detection and bass boost and support of 32.768K Hz clock or crystal.
The KT0803K features dual 20-bit ΔΣ audio ADCs, a highfidelity digital stereo audio processor and a fully integrated radio frequency (RF) transmitter. An on-chip low-drop-out regulator (LDO) allows the chip to be integrated in a wide range of low-voltage battery-operated systems with power supply ranging from 1.6V to 3.6V.
The KT0803K is configured as an I2 C slave and programmed through the industry standard 2-wire MCU interface. Thanks to its high integration level, the KT0803K is mounted in a generic 16-pin SOP package. It only requires a single low-voltage supply. No external tuning is required that makes design-in effort minimum.

File: KT0803K.pdf

KT0803L

Title: Monolithic Digital Stereo FM Transmitter Radio-Station-on-a-Chip

Company: KT Micro Inc.

Details: KT0803L, our new generation of low cost Monolithic Digital FM Transmitter, is designed to process high-fidelity stereo audio signal and transmit modulated FM signal over a short range. It’s based on the architecture of award- winning KT0801 and it’s also an upgrade of KT0803K and KT0803M. The additional features added to KT0803L are standby mode through software, ALC(automatic level control), multiple reference clock, increased SNR performance and frequency response.
The KT0803L features dual 20-bit ΔΣ audio ADCs, a high- fidelity digital stereo audio processor and a fully integrated radio frequency (RF) transmitter. An on-chip low-drop-out regulator (LDO) allows the chip to be integrated in a wide range of low-voltage battery-operated systems with power supply ranging from 1.6V to 3.6V.
The KT0803L is configured as an I2C slave and programmed through the industry standard 2-wire MCU interface. Thanks to its high integration level, the KT0803L is mounted in a generic 16-pin SOP package. It only requires a single low-voltage supply. No external tuning is required that makes design-in effort minimum.

File: KT0803L.pdf

MAX7219/MAX7221

Title: Serially Interfaced, 8-Digit LED Display Drivers

Company: Maxim Integrated

Details: The MAX7219/MAX7221 are compact, serial input/output common-cathode display drivers that interface microprocessors (µPs) to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs. Included on-chip are a BCD code-B decoder, multiplex scan circuitry, segment and digit drivers, and an 8x8 static RAM that stores each digit. Only one external resistor is required to set the segment current for all LEDs. The MAX7221 is compatible with SPI™, QSPI™, and MICROWIRE™, and has slewrate-limited segment drivers to reduce EMI. A convenient 4-wire serial interface connects to all common µPs. Individual digits may be addressed and updated without rewriting the entire display. The MAX7219/MAX7221 also allow the user to select codeB decoding or no-decode for each digit. The devices include a 150µA low-power shutdown mode, analog and digital brightness control, a scanlimit register that allows the user to display from 1 to 8 digits, and a test mode that forces all LEDs on. For applications requiring 3V operation or segment blinking, refer to the MAX6951 data sheet.

File: MAX7219-MAX7221.pdf

TM1637

Title: LED Drive Control Special Circuit

Company: Titan Micro Electronics

Details: TM1637 is a kind of LED (light-emitting diode display) drive control special circuit with keyboard scan interface and it's internally integrated with MCU digital interface, data latch, LED high pressure drive and keyboard scan. This product is in DIP20/SOP20 package type with excellent performance and high quality, which is mainly applicable to the display drive of induction cooker, micro-wave oven and small household electrical appliance.

File: TM1637.pdf

Specifications

I2C-bus specification

Title: I2C-bus specification and user manual

Company: NXP Semiconductors

Details: Philips Semiconductors (now NXP Semiconductors) developed a simple bidirectional 2-wire bus for efficient inter-IC control. This bus is called the Inter-IC or I2C-bus. Only two bus lines are required: a serial data line (SDA) and a serial clock line (SCL). Serial, 8-bit oriented, bidirectional data transfers can be made at up to 100 kbit/s in the Standard-mode, up to 400 kbit/s in the Fast-mode, up to 1 Mbit/s in the Fast-mode Plus (Fm+), or up to 3.4 Mbit/s in the High-speed mode. The Ultra Fast-mode is a uni-directional mode with data transfers of up to 5 Mbit/s.

File: I2C-UM10204-spec.pdf


TODO

Title: TODO

Company: TODO

Details: TODO

File: TODO.pdf