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MAX9235 Schematic ( PDF Datasheet ) - Maxim Integrated Products

Teilenummer MAX9235
Beschreibung 10-Bit LVDS Serializer
Hersteller Maxim Integrated Products
Logo Maxim Integrated Products Logo 




Gesamt 11 Seiten
MAX9235 Datasheet, Funktion
www.DataSheet4U.com
19-0849; Rev 0; 7/07
10-Bit LVDS Serializer
General Description
The MAX9235 serializer transforms 10-bit-wide parallel
LVCMOS/LVTTL data into a serial high-speed, low-volt-
age differential signaling (LVDS) data stream. The seri-
alizer typically pairs with deserializers like the
MAX9206, which receives the serial output and trans-
forms it back to 10-bit-wide parallel data.
The MAX9235 transmits serial data at speeds up to
400Mbps over PCB traces or twisted-pair cables. Since
the clock is recovered from the serial data stream,
clock-to-data and data-to-data skew that would be pre-
sent with a parallel bus are eliminated.
The MAX9235 serializer requires no external compo-
nents and no control signals and can lock to a 16MHz
to 40MHz system clock. The serializer output is held in
high impedance until the device is fully locked to the
local system clock.
The MAX9235 operates from a single +3.3V supply, is
specified for operation from -40°C to +105°C, and is
available in a 16-pin TQFN (3mm x 3mm) package.
Applications
Lane Departures
Security Cameras
Rear View Cameras
Production Line Monitoring
Features
Stand-Alone Serializer (vs. SERDES) Ideal for
Unidirectional Links
Framing Bits for Deserializer Resync Allow Hot
Insertion Without System Interruption
LVDS Serial Output Rated for Point-to-Point
Applications
Wide Reference Clock Input Range
16MHz to 40MHz
Low 31mA Supply Current
10-Bit Parallel LVCMOS/LVTTL Interface
Up to 400Mbps Payload Data Rate
Small 16-Pin TQFN (3mm x 3mm) Package
Ordering Information
PART
PIN-
PACKAGE
REF CLOCK PKG
RANGE (MHz) CODE
MAX9235ETE+ 16 TQFN-EP*
16 to 40
TI633-5
+Denotes a lead-free package.
Note: The device is specified over the -40°C to +105°C temper-
ature range.
*EP = Exposed pad.
Pin Configuration and Functional Diagram appear at end of
data sheet.
Typical Application Circuit
10
IN_
TCLK
PLL
TIMING AND
CONTROL
MAX9235
OUT+
LVDS
IN+
100Ω
OUT-
PCB OR
TWISTED PAIR
100Ω
IN-
PLL
TIMING AND
CONTROL
MAX9206
CLOCK
RECOVERY
10
OUT_
REFCLK
EN
LOCK
RCLK
RCLK_R/F
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.






MAX9235 Datasheet, Funktion
10-Bit LVDS Serializer
Typical Operating Characteristics
(VCC = +3.3V, RL = 50Ω, CL = 5pF, TA = +25°C, unless otherwise noted.)
WORST-CASE PATTERN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
34
33
32
31
30
29
28
3.0
TCLK = 40MHz
3.1 3.2 3.3 3.4 3.5
SUPPLY VOLTAGE (V)
3.6
PIN
1–7, 14, 15, 16
8
9, 12
10
11
13
NAME
IN3–IN9, IN0,
IN1, IN2
TCLK
GND
OUT-
OUT+
VCC
EP
FUNCTION
LVCMOS/LVTTL Data Inputs. Data is loaded into a 10-bit latch by the rising TCLK edge. Each
input is internally pulled to ground.
LVCMOS/LVTTL Reference Clock Input. Accepts a 16MHz to 40MHz clock. TCLK provides a
frequency reference to the PLL and strobes parallel data into the input latch on the rising edge.
Ground
Inverting Bus LVDS Differential Output
Noninverting Bus LVDS Differential Output
Power-Supply Input. Bypass to ground with a 0.1µF capacitor and a 0.001µF capacitor. Place the
0.001µF capacitor closest to VCC.
Exposed Pad. Solder EP to ground for improved heat dissipation.
6 _______________________________________________________________________________________

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