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Description

VIDEO, CHROMA AND SYNCHRONIZING SIGNALS PROCESSING IC FOR PAL / NTSC / SECAM SYSTEM COLOR TV

TB1226EN that is a signal processing IC for the PAL / NTSC / SECAM color TV system integrates video, chroma and synchronizing signal processing circuits together in a 56-pin shrink DIP plastic package. TB1226EN incorporates a high performance picture quality compensation circuit in the video section, an automatic PAL / NTSC / SECAM discrimination circuit in the chroma section, and an automatic 50 / 60Hz discrimination circuit in the synchronizing section. Besides a crystal oscillator that internally generates 4.43MHz, 3.58MHz and M / N-PAL clock signals for color demodulation, there is a horizontal PLL circuit built in the IC.

Video section

1. Built-in trap filter
2. Black expansion circuit
3. Variable DC regeneration rate
4. Y delay line
5. Sharpness control by aperture control
6. γ correction

Chroma section

1. Built-in 1H Delay circuit
2. PAL / SECAM base band demodulation system
3. One crystal color demodulation circuit (4.43MHz, 3.58MHz, M / N-PAL)
4. Automatic system discrimination, system forced mode
5. 1H delay line also serves as comb filter in NTSC demodulation
6. Built-in band-pass filter, SECAM bell filter
7. Color limiter circuit

Other data sheets are available within the file: TB1226E, TB1226

Part Number: AR9344

Function: IEEE 802.11n 2×2 2.4/5 GHz Systemon-a-Chip

Package: 409-pin BGA Type

Manufacturer: Atheros Communications

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Description

The Atheros AR9344 is a highly integrated and feature-rich IEEE 802.11n 2×2 2.4/5 GHz System on-a-Chip (SoC) for advanced WLAN platforms. It includes a MIPS 74Kc processor, PCI Express 1.1 Root Complex and Endpoint interfaces, five port IEEE 802.3 Fast Ethernet Switch with MAC/PHY, one MII/RMII/RGMII interface, one USB 2.0 MAC/PHY, and external memory interface for serial Flash, SDRAM, DDR1 or DDR2, I2S/SPDIF-Out audio interface, SLIC VOIP/PCM interface, two UARTs, and GPIOs that can be used for LED controls or other general purpose interface configurations.

The AR9344 PCIE Root Complex interface can be used to connect to another Atheros single-chip MAC/BB/radio for dual concurrent WLAN applications. The AR9344 supports booting from either NOR or NAND flash. If NOR flash is used as boot codestore, an additional NAND flash device can still be connected, for end-user multimedia storage and other applications.

AR9344 Block Diagram

Features

1. 74Kc MIPS processor with 64 KB I-Cache and 32 KB D-Cache, operating at up to 533 MHz

2. External 16- or 32-bit DDR1, DDR2 operating at up to 200 MHz (400 M transfers/sec), or 16-
bit SDRAM memory interface operating at up to 200 MHz

3. NAND and SPI NOR Flash memory support

4. 10/100 Ethernet Switch with five IEEE 802.3 Ethernet LAN ports

5. MII/RMII/RGMII interface

processor

TB1226EN Datasheet PDF – Signal processing IC – Toshiba

Description

TB1226EN Datasheet PDF Download

ATHEROS AR9344 Datasheet – IEEE 802.11n 2×2 2.4/5 GHz SoC

Description

ATHEROS AR9344 PDF Download

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