Package Information
| Lead Count (#) | 56 |
| Pkg. Code | NLG56 |
| Pitch (mm) | 0.5 |
| Pkg. Type | VFQFPN |
| Pkg. Dimensions (mm) | 8.0 x 8.0 x 0.85 |
Environmental & Export Classifications
| Moisture Sensitivity Level (MSL) | 3 |
| Pb (Lead) Free | Yes |
| ECCN (US) | EAR99 |
| HTS (US) | 8542.39.0090 |
Product Attributes
| Lead Count (#) | 56 |
| Carrier Type | Reel |
| Moisture Sensitivity Level (MSL) | 3 |
| Advanced Features | Programmable Hitless Reference Switching, Fractional-N PLL, External Feedback |
| Phase Jitter Typ RMS (ps) | 0.270 |
| Qty. per Reel (#) | 3000 |
| Reference Output | Yes |
| Qty. per Carrier (#) | 0 |
| Pb (Lead) Free | Yes |
| Pb Free Category | e3 Sn |
| Temp. Range | -40 to +85°C |
| Country of Assembly | Taiwan |
| Country of Wafer Fabrication | Singapore |
| Application | Port Synchronizer |
| Channels (#) | 1 |
| Core Voltage (V) | 2.5, 3.3 |
| Diff. Inputs | 2 |
| Diff. Outputs | 8 |
| Family Name | UFT (Gen 3) |
| Feedback Input | Yes |
| Fractional Output Dividers (#) | 2 |
| Input Freq (MHz) | 0.008 - 875 |
| Input Freq Range Type | TDM, DS1, E1, SONET/SDH, Ethernet, OTN |
| Input Type | LVCMOS, LVTTL, HCSL, LVHSTL, LVDS, LVPECL |
| Inputs (#) | 2 |
| Length (mm) | 8 |
| Loop Bandwidth Range (Hz) | 0.25 - 512 |
| MOQ | 3000 |
| Output Banks (#) | 4 |
| Output Freq Range (MHz) | 0.008 - 1000 |
| Output Freq Range Type | TDM, DS1, E1, DS2, E3, DS3, 100BASE-T, STM-1/OC-3, STM-4/OC-12, 1000BASE-T/X, STM-16/OC-48, OTU-1, STM-64/OC-192/10GBASE-W, 10GBASE-R, OTU-2, XGMII/XAUI |
| Output Signaling | LVPECL, LVDS, LVCMOS |
| Output Skew (ps) | 45 |
| Output Type | LVCMOS, LVDS, LVPECL |
| Output Voltage (V) | 2.5, 3.3 |
| Outputs (#) | 8 |
| Package Area (mm²) | 64.0 |
| Phase Jitter Typ RMS (fs) | 270.000 |
| Pitch (mm) | 0.5 |
| Pkg. Dimensions (mm) | 8.0 x 8.0 x 0.85 |
| Pkg. Type | VFQFPN |
| Product Category | FemtoClock NG |
| Prog. Clock | Yes |
| Prog. Interface | I2C |
| Reel Size (in) | 13 |
| Requires Terms and Conditions | Does not require acceptance of Terms and Conditions |
| Spread Spectrum | No |
| Tape & Reel | Yes |
| Thickness (mm) | 0.85 |
| VCO Max Freq (MHz) | 4000 |
| VCO Min Freq (MHz) | 3000 |
| Width (mm) | 8 |
| Xtal Freq (KHz) | 10000 - 40000 |
Resources for 8T49N281
Description
The 8T49N281i has one fractional-feedback PLL that can be used as a jitter attenuator or frequency translator. It is equipped with six integer and two fractional output dividers, allowing the generation of up to eight different output frequencies, ranging from 8kHz to 1GHz. Three of these frequencies are completely independent of each other and the inputs. The other five are related frequencies. The eight outputs may select among LVPECL, LVDS, or LVCMOS output levels.
Renesas' third-generation Universal Frequency Translator family also includes the 8T49N282i (4-in/2-PLL/8-out) and the 8T49N283i (2-in/2-PLL/8-out).
To see other devices in this product family, visit the Universal Frequency Translators page.