Part A
CDCE913PWR
德州儀器
- Lifecycle
- Active
- Stock
- 1503 件
- Package
- TSSOP-14
- Series
- 時鐘定時-時鐘發生器、PLL、頻率合成器
Replacement verdict
Compatible functional replacement candidate
The CDCE925PWRG4 is a functional superset of the CDCE913PWR, offering three PLLs and five outputs versus one PLL and three outputs, while sharing the same 24-pin TSSOP footprint, 1.8 V to 3.6 V supply range, and I²C programmable architecture. It can serve as a drop-in replacement in most designs where the additional output channels and PLL resources are acceptable, though configuration registers and output assignments must be revalidated against the target application.
Package Type
High match
Supply Voltage Range
High match
Output Channel Count
Validation required
PLL Count
Validation required
Parts at a glance
Part B
CDCE925PWRG4
德州儀器
- Lifecycle
- Active
- Stock
- 7087 件
- Package
- TSSOP-16
- Series
- 時鐘定時-時鐘發生器、PLL、頻率合成器
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | CDCE913PWR | CDCE925PWRG4 | Why it matters |
|---|---|---|---|
| Number of Outputs | 3 | 5 | Determines how many independent clock signals the device can generate, directly affecting system clock distribution capability. |
| Input Frequency Range | 8 MHz to 160 MHz | 8 MHz to 160 MHz | Defines the allowable reference clock input range for the PLL to lock and generate outputs. |
| Output Frequency Range | 1 MHz to 230 MHz | 1 MHz to 230 MHz | Specifies the range of clock frequencies the device can synthesize for downstream components. |
| Supply Voltage | 1.8 V, 2.5 V, 3.3 V | 1.8 V, 2.5 V, 3.3 V | Must match the system power rail to ensure proper operation and logic-level compatibility. |
| Package / Case | TSSOP-16 | TSSOP-16 | Physical footprint and pin count must match the PCB layout for drop-in compatibility. |
| Operating Temperature Range | -40°C to 85°C | -40°C to 85°C | Ensures reliable operation across the intended environmental conditions of the application. |
| PLL / Synthesizer Type | Fractional-N PLL | Fractional-N PLL | Determines jitter performance and the ability to generate non-integer related frequencies. |
| Programmable Interface | I2C | I2C | Defines how the device is configured and programmed in-system for flexible clock generation. |
| Output Type | LVCMOS | LVCMOS | Must be compatible with the input logic levels of the devices receiving the clock signal. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | CDCE913PWR | CDCE925PWRG4 |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Active | Discontinued at Digi-Key |
| Type | Spread Spectrum Clock Driver | PLL Clock Generator |
| PLL | Yes with Bypass | Yes with Bypass |
| Input | LVCMOS, Crystal | LVCMOS, Crystal |
| Output | LVCMOS | LVCMOS |
| Number of Circuits | 1 | 1 |
| Ratio - Input: Output | 1:3 | 1:5 |
| Differential - Input: Output | No/No | No/No |
| Frequency - Max | 230MHz | 230MHz |
| Divider / Multiplier | Yes/Yes | Yes/No |
| Voltage - Supply | 1.7V ~ 1.9V, 2.3V ~ 3.6V | 1.7V ~ 1.9V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the CDCE913PWR and CDCE925PWRG4?
The CDCE913PWR and CDCE925PWRG4 are Texas Instruments programmable clock generators from the CDCE(L)9xx family. The CDCE913PWR is a 1-PLL, 3-output programmable clock synthesizer in a 16-pin TSSOP package, while the CDCE925PWRG4 is a 2-PLL, 5-output programmable clock synthesizer in a 24-pin TSSOP package.
How do the output counts differ between the CDCE913PWR and CDCE925PWRG4?
The CDCE913PWR provides 3 programmable outputs from a single PLL, whereas the CDCE925PWRG4 provides 5 programmable outputs from two independent PLLs, allowing more simultaneous output frequencies and greater flexibility in multi-clock systems.
Do the CDCE913PWR and CDCE925PWRG4 support the same input reference frequency?
Both devices accept a crystal input or an external reference clock. The CDCE913PWR supports a crystal frequency range of 8 MHz to 32 MHz, and the CDCE925PWRG4 supports a crystal frequency range of 8 MHz to 32 MHz as well, per the Texas Instruments CDCE(L)9xx datasheet.
Are the CDCE913PWR and CDCE925PWRG4 pin-compatible?
No. The CDCE913PWR uses a 16-pin TSSOP package, while the CDCE925PWRG4 uses a 24-pin TSSOP package. The different pin counts and pin assignments prevent direct pin-to-pin substitution without PCB redesign.
What supply voltage do the CDCE913PWR and CDCE925PWRG4 require?
Both devices operate from a 3.3 V nominal supply, with a recommended operating range of 3.0 V to 3.6 V for the core and I/O, as specified in the Texas Instruments CDCE(L)9xx datasheet.
Can the CDCE913PWR and CDCE925PWRG4 be programmed via the same interface?
Yes. Both devices are programmed through an I2C-compatible serial interface and support non-volatile EEPROM configuration, allowing default settings to be stored and loaded at power-up without external programming.
Which device should be selected for a design requiring more than three clock outputs?
The CDCE925PWRG4 should be selected when more than three outputs are needed, since it provides five outputs and two PLLs. The CDCE913PWR is limited to three outputs from one PLL and is better suited to simpler, lower-output-count designs.
Do the CDCE913PWR and CDCE925PWRG4 have the same operating temperature range?
Both devices are specified for the industrial temperature range of –40°C to +85°C, as stated in the Texas Instruments CDCE(L)9xx datasheet.