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PDF MAX9271 Data sheet ( Hoja de datos )
| Número de pieza | MAX9271 | |
| Descripción | 16-Bit GMSL Serializer | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX9271 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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EVALUATION KIT AVAILABLE
MAX9271
16-Bit GMSL Serializer with Coax or
STP Cable Drive
General Description
The MAX9271 compact serializer is designed to drive
50I coax or 100I shielded twisted-pair (STP) cable. The
device pairs with the MAX9272 deserializer.
The parallel input is programmable for single or double
input. Double input allows higher pixel clock input fre-
quency by registering two pixels of typical image-sensor
video data before serializing. This doubles the maximum
pixel clock frequency compared to single input.
The device features an embedded control channel that
operates at 9.6kbps to 1Mbps in UART and mixed UART/
I2C modes, and up to 400kbps in I2C mode. Using the
control channel, a microcontroller (FC) is capable of pro-
gramming serializer, deserializer, and camera (or any
peripheral) registers at any time, independent of video
timing. There is one dedicated GPIO, four optional
GPIOs, and a GPO output, allowing remote power-up of
a camera module, camera frame synchronization, and
other uses. Error-detection and correction coding are
programmable.
For driving longer cables, the device has programmable
pre/deemphasis. Programmable spread spectrum is
available on the serial output. The serial output meets
ISO 10605 and IEC 61000-4-2 ESD standards. The core
supply range is 1.7V to 1.9V and the I/O supply range is
1.7V to 3.6V. The device is available in a 32-pin (5mm
x 5mm) TQFN-EP package with 0.5mm lead pitch and
operates over the -40NC to +105NC temperature range.
Applications
Automotive Camera Systems
Ordering Information and Typical Application Circuit appear
at end of data sheet.
Benefits and Features
S Ideal for Camera Applications
Drives Low-Cost 50I Coax Cable and FAKRA
Connectors or 100I STP
Error Detection/Correction
9.6kbps to 1Mbps Control Channel in I2C-to-I2C
Mode with Clock Stretch Capability
Best-in-Class Supply Current: 75mA (max)
Double-Rate Clock for Megapixel Cameras
Serializer Pre/Deemphasis Allows 15m Cable at
Full Speed
32-Pin (5mm x 5mm) TQFN Package with 0.5mm
Lead Pitch
S High-Speed Data Serialization for Megapixel
Cameras
Up to 1.5Gbps Serial-Bit Rate with Single or
Double Input: 6.25MHz to 100MHz Clock
S Multiple Control-Channel Modes for System
Flexibility
9.6kbps to 1Mbps Control Channel in UART-to-
UART or UART-to-I2C Modes
S Reduces EMI and Shielding Requirements
Output Programmable for 100mV to 500mV
Single-Ended or 100mV to 400mV Differential
Programmable Spread Spectrum on the Serial
Output Reduces EMI
Bypassable Input PLL for Parallel Clock Jitter
Attenuation
Tracks Spread Spectrum on Parallel Input
S Peripheral Features for Camera Power-Up and
Verification
Built-In PRBS Generator for BER Testing of the
Serial Link
Up to Five GPIO Ports
Dedicated “Up/Down” GPO for Camera Frame
Sync Trigger and Other Uses
Remote/Local Wake-Up from Sleep Mode
S Meets Rigorous Automotive and Industrial
Requirements
-40NC to +105NC Operating Temperature
±10kV Contact and ±15kV IEC 61000-4-2 ESD
Protection
±10kV Contact and ±30kV Air ISO 10605 ESD
Protection
For related parts and recommended products to use with this part, refer to www.maximintegrated.com/MAX9271.related.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-6385; Rev 1; 11/12
1 page  
MAX9271
16-Bit GMSL Serializer with Coax or
STP Cable Drive
LIST OF TABLES
Table 1. Power-Up Default Register Map (see Table 16) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 2. Input Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 3. Data-Rate Selection Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Table 4. I2C Bit-Rate Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Table 5. TP/Coax Drive Current (CMLLVL = 1000) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Table 6. Serial Output Spread . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Table 7. Spread Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Table 8. Modulation Coefficients and Maximum SDIV Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Table 9. Configuration Input Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 10. Startup Procedure for Video-Display Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Table 11. Startup Procedure for Image-Sensing Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Table 12. MAX9271 Feature Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 13. Double-Function Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 14. Typical Power-Supply Currents (Using Worst-Case Input Pattern) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Table 15. Suggested Connectors and Cables for GMSL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Table 16. Register Table (see Table 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Maxim Integrated
5
5 Page 
MAX9271
16-Bit GMSL Serializer with Coax or
STP Cable Drive
Pin Configuration
TOP VIEW
24 23 22 21 20 19 18 17
PCLKIN 25
16 PWDN
DIN0 26
15 MS/HVEN
DIN1 27
14 GPIO1/BWS
DIN2 28
DVDD 29
MAX9271
13 GPO
12 IOVDD
DIN3 30
11 DIN15/VS
DIN4 31
DIN5 32
+
EP* 10 DIN14/HS
9 DIN13/GPIO5
1 2345678
TQFN
(5mm x 5mm x 0.75mm)
*CONNECT EP TO GROUND PLANE
PIN
1–4, 26, 27, 28,
30, 31, 32
5, 22
6–9
10
11
12
Pin Description
NAME
DIN0–DIN9
AVDD
DIN10/
GPIO2–DIN13/
GPIO5
DIN14/HS
DIN15/VS
IOVDD
FUNCTION
Parallel Data Inputs with Internal Pulldown to EP
1.8V Analog Power Supply. Bypass AVDD to EP with 0.1FF and 0.001FF capacitors as
close as possible to the device with the smaller capacitor closest to AVDD.
Parallel Data Inputs/GPIO. Defaults to parallel data input on power-up.
Parallel data input has internal pulldown to EP.
GPIO_ has an open-drain output with internal 60kI pullup to IOVDD. See Table 1 for
programming details.
Parallel Data Input/Horizontal Sync with Internal Pulldown to EP. Defaults to parallel data
input on power-up.
Horizontal sync input when VS/HS encoding is enabled (Table 2).
Parallel Data Input/Vertical Sync with Internal Pulldown to EP. Defaults to parallel data
input on power-up.
Vertical sync input when VS/HS encoding is enabled (Table 2).
I/O Supply Voltage. 1.8V to 3.3V logic I/O power supply. Bypass IOVDD to EP with
0.1FF and 0.001FF capacitors as close as possible to the device with the smallest value
capacitor closest to IOVDD.
Maxim Integrated
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MAX9271.PDF ] | |
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