Information as of 2000-01-10
 Latest information online
SAA8115HL; Digital camera USB interface IC
| Description |  |
The SAA8115HL is the second generation of an integrated
circuit applicable in PC video cameras to convert D1 video
signals and analog audio signals to properly formatted
USB packets.
This powerful successor of the SAA8117HL can handle up
to 15 fps in VGA format or 30 fps in CIF format. High
snapshot quality is achieved by using the SDRAM
interface to an external memory.
It is designed as a back-end of the SAA8112HL (general
camera digital processing IC) and is optimized for use with
the TDA8784 to TDA8787 (camera pre-processing ICs).
| Features | |
 |
- VGA (progressive mode), CIF and medium resolution
(PAL non-interlaced mode) CCD sensors compliant
- D1 digital video input (8 bits YUV 4 : 2 : 2, time
multiplexed)
- Internal Pulse Pattern Generator (PPG) dedicated for
VGA Panasonic, CIF and medium resolution Sharp
sensors or compatibles, and frame rate selection
- Frame rate converter
- SDRAM interface for high quality VGA snapshot
(uncompressed 4 :2 :2)
- Downsampler and scaler (programmable formatter for
CIF, QCIF, sub-QCIF, SIF and QSIF) controlled via
SNERT (UART) interface
- Flexible compression engine controlled via SNERT
(UART) interface
- Selectable output frame rate (up to 15 fps in VGA, up to
30 fps in CIF and QCIF)
- Video packetizer FIFO
- I²C-bus interface for communication between the USB
protocol hardware and the external microcontroller
- Microphone/audio input to USB (microphone supply,
controllable gain and ADC)
- Integrated analog bus driver (ATX)
- Integrated main oscillator
- Integrated 5 V power and reset circuit including
functions for bus-powered USB device
- Miscellaneous functions e.g. power management, PLL
for audio frequencies.
| Applications | |
Low-cost desktop video applications with USB interface.
| Datasheet | |
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