CDCR83A

Mfr. #:: CDCR83A
Manufacturer:: Texas Instruments
Description:
Lifecycle:: New from this manufacturer.
Datasheet:: CDCR83A Datasheet
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Product Attribute
Attribute Value

Manufacturer: Texas Instruments

Product Category: Clock/Timing - Application Specific

Series: CDCR83A

Type: Clock Generators

Packaging: Tube Alternate Packaging

Unit-Weight: 0.004568 oz

Mounting-Style: SMD/SMT

Package-Case: SSOP-24

Operating-Temperature: -40°C ~ 85°C

Mounting-Type: Surface Mount

Output-Type: RSL

Voltage-Supply: 3.135 V ~ 3.465 V

Supplier-Device-Package: 24-SSOP/QSOP

PLL: Yes

Main-Purpose: Memory, RDRAM

Input: TTL

Output: Clock

Number-of-Circuits: 1

Ratio-Input:Output: 1899/12/30 1:01:00

Differential-Input:Output: No/Yes

Frequency-Max: 400MHz

Number-of-Outputs: 1 Output

Maximum-Operating-Temperature: + 85 C

Minimum-Operating-Temperature: - 40 C

Operating-Supply-Voltage: 3.3 V

Operating-Supply-Current: 70 mA

Duty-Cycle-Max: 75 %

Max-Output-Freq: 400 MHz

Jitter: 50 ps

Tags: CDCR83A, CDCR83, CDCR8, CDCR, CDC

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Step1:
Vacuum Packaging with PL

Step2:
Anti-Static Bag

Step3:
Packaging Boxes

CDCR83A Description

***th Star Micro: the direct rambus clock generator (drcg) provides the necessary clock signals to support a direct rambus memory subsystem. it includes signals to synchronize the direct rambus channel clock to an external system or processor clock. it is designed to support direct rambus memory on a desktop workstation server and mobile pc motherboards. drcg also provides an off-the-shelf solution for a broad range of direct rambus memory applications. the drcg provides clock multiplication and phase alignment for a direct rambus memory subsystem to enable synchronous communication between the rambus channel and asic clock domains. in a direct rambus memory subsystem a system clock source provides the refclk and pclk clock references to the drcg and memory controller respectively. view all in datasheet

***as Instruments: The Direct Rambus clock generator (DRCG) provides the necessary clock signals to support a Direct Rambus memory subsystem. It includes signals to synchronize the Direct Rambus channel clock to an external system or processor clock. It is designed to support Direct Rambus memory on a desktop, workstation, server, and mobile PC motherboards. DRCG also provides an off-the-shelf solution for a broad range of Direct Rambus memory applications. The DRCG provides clock multiplication and phase alignment for a Direct Rambus memory subsystem to enable synchronous communication between the Rambus channel and ASIC clock domains. In a Direct Rambus memory subsystem, a system clock source provides the REFCLK and PCLK clock references to the DRCG and memory controller, respectively. The DRCG multiplies REFCLK and drives a high-speed BUSCLK to RDRAMs and the memory controller. Gear ratio logic in the memory controller divides the PCLK and BUSCLK frequencies by ratios M and N such that PCLKM = SYNCLKN, where SYNCLK = BUSCLK/4. The DRCG detects the phase difference between PCLKM and SYNCLKN and adjusts the phase of BUSCLK such that the skew between PCLKM and SYNCLKN is minimized. This allows data to be transferred across the SYNCLK/PCLK boundary without incurring additional latency. User control is provided by multiply and mode selection terminals. The multiply terminals provide selection of one of four clock frequency multiply ratios, generating BUSCLK frequencies ranging from 267 MHz to 400 MHz with clock references ranging from 33 MHz to 100 MHz. The mode select terminals can be used to select a bypass mode where the frequency multiplied reference clock is directly output to the Rambus channel for systems where synchronization between the Rambus clock and a system clock is not required. Test modes are provided to bypass the PLL and output REFCLK on the Rambus channel and to place the outputs in a high-impedance state for board testing. The CDCR83A has a fail-safe power up initialization state-machine which supports proper operation under all power up conditions. The CDCR83A is characterized for operation over free-air temperatures of 40C to 85C.

Market price

Part #	Mfg.	Description	Stock	Price
CDCR83ADBQR DISTI # 31710202	Texas Instruments	PLL Clock Generator Single 267MHz to 400MHz 24-Pin SSOP T/R RoHS: Compliant	5000	2500:$3.2492
CDCR83ADBQ DISTI # 296-18600-5-ND	Texas Instruments	IC DIRECT RAMBUS CLK GEN 24-QSOP RoHS: Compliant Min Qty: 150 Container: Tube	Limited Supply - Call
CDCR83ADBQG4 DISTI # CDCR83ADBQG4-ND	Texas Instruments	IC DIRECT RAMBUS CLK GEN 24-QSOP RoHS: Compliant Min Qty: 150 Container: Tube	Limited Supply - Call
CDCR83ADBQR DISTI # CDCR83ADBQR-ND	Texas Instruments	IC DIRECT RAMBUS CLK GEN 24-QSOP RoHS: Compliant Min Qty: 2500 Container: Tape & Reel (TR)	Temporarily Out of Stock	2500:$2.8090
CDCR83ADBQRG4 DISTI # CDCR83ADBQRG4-ND	Texas Instruments	IC DIRECT RAMBUS CLK GEN 24-QSOP RoHS: Compliant Min Qty: 2500 Container: Tape & Reel (TR)	Temporarily Out of Stock	2500:$2.8090
CDCR83ADBQR DISTI # V39:1801_07248440	Texas Instruments	PLL Clock Generator Single 267MHz to 400MHz 24-Pin SSOP T/R RoHS: Compliant	0
CDCR83ADBQR DISTI # CDCR83ADBQR	Texas Instruments	PLL Clock Generator Single 267MHz to 400MHz 24-Pin SSOP T/R - Tape and Reel (Alt: CDCR83ADBQR) RoHS: Compliant Min Qty: 2500 Container: Reel	Americas - 0	25000:$2.5900 15000:$2.6900 10000:$2.7900 5000:$2.8900 2500:$2.9900
CDCR83ADBQRG4 DISTI # CDCR83ADBQRG4	Texas Instruments	PLL Clock Generator Single 267MHz to 400MHz 24-Pin SSOP T/R - Tape and Reel (Alt: CDCR83ADBQRG4) RoHS: Compliant Min Qty: 2500 Container: Reel	Americas - 0	25000:$2.5900 15000:$2.6900 10000:$2.7900 5000:$2.8900 2500:$2.9900
CDCR83ADBQR DISTI # 595-CDCR83ADBQR	Texas Instruments	Clock Generators & Support Products Direct Rambus(TM) Clock Gen RoHS: Compliant	0	1:$5.5900 10:$5.0300 100:$4.1100 250:$3.8600 500:$3.5000 1000:$2.9500 2500:$2.8000
CDCR83ADBQRG4 DISTI # 595-CDCR83ADBQRG4	Texas Instruments	Clock Generators & Support Products Direct Rambus(TM) Clock Gen RoHS: Compliant	0	2500:$2.8000
CDCR83ADBQ DISTI # 595-CDCR83ADBQ	Texas Instruments	Clock Generators & Support Products Direct Rambus(TM) Clock Gen RoHS: Compliant	0
CDCR83ADBQG4 DISTI # 595-CDCR83ADBQG4	Texas Instruments	Clock Generators & Support Products Direct Rambus(TM) Clock Gen RoHS: Compliant	0
CDCR83ADBQ	Texas Instruments	PLL Based Clock Driver, CDC Series, 1 True Output(s), 1 Inverted Output(s), PDSO24 RoHS: Compliant	15676	1000:$3.2500 500:$3.4200 100:$3.5600 25:$3.7100 1:$4.0000
CDCR83ADBQR	Texas Instruments	PLL Based Clock Driver, CDC Series, 1 True Output(s), 1 Inverted Output(s), PDSO24 RoHS: Compliant	36047	1000:$2.7800 500:$2.9200 100:$3.0400 25:$3.1700 1:$3.4200
CDCR83ADBQR	Texas Instruments	* FREE SHIPPING ORDERS OVER $100 *	646	437:$2.0460 102:$2.2940 1:$3.7200
CDCR83ADBQR	Texas Instruments		106

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CDCR83A

Step1:Vacuum Packaging with PL

Step2:Anti-Static Bag

Step3:Packaging Boxes

Step1:
Vacuum Packaging with PL

Step2:
Anti-Static Bag

Step3:
Packaging Boxes