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PCKEP14
Datasheet
General description
The PCKEP14 is a low skew 1-to-5 differential driver, designed with clock distribution in mind, accepting two clock sources into an input multiplexer. The ECL/PECL input signals can be either differential or single-ended (if the VBB output is used). HSTL inputs can be used when the PCKEP14 is operating under PECL conditions.
The PCKEP14 specifically guarantees low output-to-output skew. Optimal design, layout, and processing minimize skew within a device, and from device to device.
To ensure that the tight skew specification is realized, both sides of any differential output need to be terminated identically into 50 Ohm resistors, even if only one output is being used. If an output pair is unused, both outputs may be left open (unterminated) without affecting skew.
The common enable (EN) is synchronous, outputs are enabled/disabled in the LOW state. This avoids a runt clock pulse when the device is enabled/disabled, as can happen with an asynchronous control. The internal flip-flop is clocked on the falling edge of the input clock, therefore, all associated specification limits are referenced to the negative edge of the clock input.
The PCKEP14, as with most other ECL devices, can be operated from a positive VCC supply in PECL mode. This allows the PCKEP14 to be used for high performance clock distribution in +3.3 V or +2.5 V systems.
Features
- 100 ps device-to-device skew
- 25 ps within device skew
- 400 ps typical propagation delay
- Maximum frequency > 2 GHz (typical)
- Contains temperature compensation
- PECL and HSTL mode: VCC = 2.375 V to 3.8 V with VEE = 0 V
- NECL mode: VCC = 0 V with VEE = -2.375 V to -3.8 V
- LVDS input compatible
- Open input default state.
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| PCKEP14D | PCKEP14D | 9352 728 24112 | Volume production | SOT163-1
(SO20) | Tube | Standard Marking | PCKEP14D
| week 30, 2004 |
| PCKEP14D | PCKEP14D-T | 9352 728 24118 | Volume production | SOT163-1
(SO20) | Tape reel smd | Standard Marking | PCKEP14D
| week 30, 2004 |
| PCKEP14PW | PCKEP14PW | 9352 725 03112 | Volume production | SOT360-1
(TSSOP20) | Tube | Standard Marking | PCKEP14PW
| week 9, 2005 |
| PCKEP14PW | PCKEP14PW-T | 9352 725 03118 | Volume production | SOT360-1
(TSSOP20) | Reel Pack, SMD, 13" | Standard Marking | PCKEP14PW
| week 9, 2005 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| PCKEP14D | 9352 728 24112 | 5.2000 | not available | |||||
| PCKEP14D | 9352 728 24118 | 5.2000 | Order samples | |||||
| PCKEP14PW | 9352 725 03112 | 5.2000 | not available | |||||
| PCKEP14PW | 9352 725 03118 | 5.2000 | Order samples |
Technical documents
Support Documents
75010459;
PCK111/PCK210/PCKEL14/PCKEP14 High-performance PECL Clock Distribution Family Leaflet (2002-10-01)
75010759;
PCK2111 LVDS Clock Distribution IC (2002-12-20)
Parametrics/similar products
| Type number | Package | Supply voltage(V) | Application | Other features | Operating temp.(Cel) | Operating Frequency(MHz) | Inputs | Outputs | Rise/fall time(ps) | Skew (output-output)(ps) | Skew (part-part)(ps) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| PCKEP14D | SOT163-1
(SO20) |
2.5 3.3 | high-performance PECL clock distribution | synchronous output enable | -40~+85 | 1500 | 2:1 Differential PECL | 5 x Differential PECL | 300 | 50 | 200 |
| PCKEP14PW | SOT360-1
(TSSOP20) |
2.5 3.3 | high-performance PECL clock distribution | synchronous output enable | -40~+85 | 1500 | 2:1 Differential PECL | 5 x Differential PECL | 300 | 50 | 200 |
Similar products
PCKEP14 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.
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