MAX9217 Maxim, MAX9217 Datasheet

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MAX9217

Manufacturer Part Number
MAX9217
Description
The MAX9217 digital video parallel-to-serial converter serializes 27 bits of parallel data into a serial data stream
Manufacturer
Maxim
Datasheet

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The MAX9217 digital video parallel-to-serial converter
serializes 27 bits of parallel data into a serial data stream.
Eighteen bits of video data and 9 bits of control data are
encoded and multiplexed onto the serial interface, reduc-
ing the serial data rate. The data enable input determines
when the video or control data is serialized.
The MAX9217 pairs with the MAX9218 deserializer to
form a complete digital video serial link. Interconnect
can be controlled-impedance PCB traces or twisted-pair
cable. Proprietary data encoding reduces EMI and pro-
vides DC balance. DC balance allows AC-coupling,
providing isolation between the transmitting and receiv-
ing ends of the interface. The LVDS output is internally
terminated with 100Ω.
ESD tolerance is specified for ISO 10605 with ±10kV
contact discharge and ±30kV air discharge.
The MAX9217 operates from a +3.3V core supply and
features a separate input supply for interfacing to 1.8V
to 3.3V logic levels. This device is available in 48-lead
Thin QFN and LQFP packages and is specified from
-40°C to +85°C.
19-3558; Rev 4; 8/09
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.
TOP VIEW
Navigation System Display
In-Vehicle Entertainment System
Video Camera
LCD Displays
RGB_IN0
RGB_IN1
RGB_IN2
RGB_IN3
RGB_IN4
RGB_IN5
RGB_IN6
RGB_IN7
RGB_IN8
RGB_IN9
GND
V
CC
37
38
39
40
41
42
43
44
45
46
47
48
________________________________________________________________ Maxim Integrated Products
+
General Description
MAX9217
LQFP
Applications
24
23
22
21
20
19
18
17
16
15
14
13
DC-Balanced LVDS Serializer
I.C.
PCLK_IN
DE_IN
CNTL_IN8
CNTL_IN7
CNTL_IN6
CNTL_IN5
CNTL_IN4
CNTL_IN3
V
GND
CNTL_IN2
CC
♦ Proprietary Data Encoding for DC Balance and
♦ Control Data Sent During Video Blanking
♦ Five Control Data Inputs Are Single-Bit-Error
♦ Output Common-Mode Filter Reduces EMI
♦ Greater than 10m STP Cable Drive
♦ Wide ±2% Reference Clock Tolerance
♦ ISO 10605 ESD Protection
♦ Separate Input Supply Allows Interface to 1.8V to
♦ +3.3V Core Supply
♦ Space-Saving Thin QFN and LQFP Packages
♦ -40°C to +85°C Operating Temperature
+ Denotes a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
* EP = Exposed pad.
27-Bit, 3MHz-to-35MHz
MAX9217ECM+
MAX9217ECM/V+
MAX9217ETM+
RGB_IN0
RGB_IN1
RGB_IN2
RGB_IN3
RGB_IN4
RGB_IN5
RGB_IN6
RGB_IN7
RGB_IN8
RGB_IN9
Reduced EMI
Tolerant
3.3V Logic
GND
V
CC
PART
37
38
39
40
41
42
43
44
45
46
47
48
+
THIN QFN-EP
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
Ordering Information
MAX9217
Pin Configurations
PIN-
PACKAGE
48 LQFP
48 LQFP
48 Thin QFN-EP*
24
23
22
21
20
19
18
17
16
15
14
13
Features
I.C
PCLK_IN
DE_IN
CNTL_IN8
CNTL_IN7
CNTL_IN6
CNTL_IN5
CNTL_IN4
CNTL_IN3
CNTL_IN2
V
GND
CC
1

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MAX9217 Summary of contents

Page 1

... ESD tolerance is specified for ISO 10605 with ±10kV contact discharge and ±30kV air discharge. The MAX9217 operates from a +3.3V core supply and features a separate input supply for interfacing to 1.8V to 3.3V logic levels. This device is available in 48-lead Thin QFN and LQFP packages and is specified from -40° ...

Page 2

... Thin QFN (derate 37mW/°C above +70°C) .2963mW Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ...

Page 3

DC ELECTRICAL CHARACTERISTICS (continued) = 100Ω ±1%, PWRDWN = high +3.0V to +3.6V, R CC_ +3.3V +25°C.) (Notes 1, 2) CC_ A PARAMETER SYMBOL Differential Output Resistance Worst-Case Supply Current Power-Down Supply ...

Page 4

... Note 2: Maximum and minimum limits over temperature are guaranteed by design and characterization. Devices are production tested +25°C. A Note 3: All LVTTL/LVCMOS inputs, except PWRDWN at ≤ 0.3V or ≥ V Note 4: AC parameters are guaranteed by design and characterization and are not production tested. Limits are set at ±6 sigma. ...

Page 5

PIN NAME 1, 13, 37 GND Input Buffer Supply and Digital Supply Ground Input Buffer Supply Voltage. Bypass to GND with 0.1µF and 0.001µF capacitors in parallel CCIN close to the device as possible, with the smallest ...

Page 6

... Figure 1. LVDS DC Output Load and Parameters 6 _______________________________________________________________________________________ 1 DC BALANCE/ INPUT LATCH PAR-TO-SER ENCODE 0 PLL TIMING AND CONTROL OUT+ OUT ((OUT+) + (OUT-)) / 2 V (+) OS Δ (+) - (+) OD Δ (+) - Functional Diagram OUT+ OUT- CMF MAX9217 GND V (-) OS | (-) V (-) OD | (-) ...

Page 7

PCLK_IN t F Figure 2. Parallel Clock Requirements (OUT+) - (OUT-) Figure 3. Output Rise and Fall Times PCLK_IN RGB_IN[17:0] CNTL_IN[8:0] DE_IN Figure 4. Synchronous Input Timing _______________________________________________________________________________________ 27-Bit, 3MHz-to-35MHz DC-Balanced LVDS Serializer LOW OUT+ OUT- C ...

Page 8

DC-Balanced LVDS Serializer RGB_IN CNTL_IN PCLK_IN OUT_ Figure 5. Serializer Delay PWRDWN HIGH-Z (OUT+) - (OUT-) PCLK_IN Figure 6. PLL Lock Time PWRDWN (OUT+) - (OUT-) PCLK_IN Figure 7. Power-Down Delay 8 _______________________________________________________________________________________ EXPANDED ...

Page 9

... OUT+ ((OUT+) + (OUT-)) / 2 Figure 8. Peak-to-Peak Output Offset Voltage Detailed Description The MAX9217 DC-balanced serializer operates at a parallel clock frequency of 3MHz to 35MHz, serializing 18 bits of parallel video data RGB_IN[17:0] when the data enable input DE_IN is high bits of parallel control data CNTL_IN[8:0] when DE_IN is low. The ...

Page 10

... Frequency-Range Setting RNG[1:0] The RNG[1:0] inputs select the operating frequency range of the MAX9217 serializer. An external clock with- in this range is required for operation. Table 3 shows the selectable frequency ranges and corresponding data rates for the MAX9217. ...

Page 11

... Figure 10. AC-Coupled Serializer and Deserializer with Two Capacitors per Link RGB_IN 1 0 CNTL_IN DE_IN PCLK_IN TIMING AND RNG0 PLL CONTROL RNG1 PWRDWN MAX9217 CERAMIC RF SURFACE-MOUNT CAPACITOR Figure 11. AC-Coupled Serializer and Deserializer with Four Capacitors per Link ______________________________________________________________________________________ 27-Bit, 3MHz-to-35MHz DC-Balanced LVDS Serializer V CC 130Ω 130Ω * OUT IN * 82Ω ...

Page 12

... The integrated 100Ω output termination is made up of two 50Ω resistors in series. The junction of the resistors is connected to the CMF pin for connecting an optional common-mode filter capacitor. Connect the filter capacitor to ground close to the MAX9217 as shown in Figure 13. The capacitor shunts common-mode switch- ing current to ground to reduce EMI. 12 ______________________________________________________________________________________ Table 3 ...

Page 13

... DC-Balanced LVDS Serializer Power-Supply Circuits and Bypassing The MAX9217 has isolated on-chip power domains. The digital core supply ( are isolated but have a common ground (GND). CCIN The PLL has separate power and ground (V ...

Page 14

... DC-Balanced LVDS Serializer Separate the LVTTL/LVCMOS inputs and LVDS output to prevent crosstalk. A four-layer PCB with separate layers for power, ground, and signals is recommended. The MAX9217 ESD tolerance is rated for Human Body Model, Machine Model, and ISO 10605. ISO 10605 R D 1MΩ ...

Page 15

... Added automotive qualified part to Ordering Information Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 15 © ...

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