Basic Product Information
Part Number: 8A34001E-000AJG8
| Field |
Value |
| Manufacturer |
Renesas Electronics (formerly IDT) |
| Device Type |
8A34001E-000AJG8 |
| Package |
144-CABGA (10 x 10 x 1.2 mm, 0.8 mm pitch) |
| Compliance |
RoHS3 / REACH Unaffected |
| Grade |
Industrial (-40°C to +85°C) |
| Series |
8A34001 (ClockMatrix) |
| Product Status |
Active |
| MSL |
MSL 3 (168 Hours) |
| ECCN |
EAR99 |
| HTSUS |
8542.39.0070 |
Core Electrical Parameters
| Parameter |
Value |
Unit |
| Product Category |
System Synchronizer / Synchronization Management Unit (SMU) |
– |
| Number of Independent Timing Channels |
8 |
– |
| Input-to-Output Ratio |
8 : 12 |
Differential Inputs : Differential Outputs |
| Total Single-Ended I/O |
16 Inputs / 24 Outputs |
LVCMOS mode |
| Maximum Input Frequency |
1,000 |
MHz |
| Minimum Input Frequency |
0.5 |
Hz |
| Maximum Output Frequency |
1,000 |
MHz (differential) |
| Maximum LVCMOS Output Frequency |
250 |
MHz |
| Phase Jitter (RMS, Typical) |
150 |
fs (10 kHz – 20 MHz) |
| Phase Jitter (RMS, Maximum) |
200 |
fs |
| Output Phase Tuning Resolution |
1 |
ps (per FOD) |
| Output-to-Output Skew (Typical, Diff) |
25 – 30 |
ps (within bank) |
| Input-Output Alignment Variation |
-500 ~ +500 |
ps (internal loopback) |
| Temperature Coefficient (Skew) |
4 |
ps/°C |
| Input Types Supported |
HCSL, LVDS, LVHSTL, LVPECL, SSTL |
– |
| Output Types Supported |
CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL |
– |
| Differential Output Swing Options |
400 / 650 / 800 / 910 |
mV |
| Core Voltage (VDD) |
3.3 / 2.5 |
V |
| Output Voltage (VDDO) |
3.3 / 2.5 / 1.8 |
V (independent per bank) |
| LVCMOS Output Voltage |
3.3 / 2.5 / 1.8 / 1.5 / 1.2 |
V |
| Supply Voltage Range |
1.71 ~ 3.465 |
V |
| Crystal / XO Frequency (System APLL) |
25 ~ 54 |
MHz |
| XO_DPLL Frequency Range (Optional) |
1 ~ 150 |
MHz |
| Programming Interface |
I2C (1 MHz) / SPI (50 MHz) |
– |
| Fractional Output Dividers (FOD) |
8 |
– |
| DPLL Loop Bandwidth Range |
12 µHz ~ 22 kHz |
Programmable |
| Input Programmable Phase Offset |
±1.638 µs @ 1 ps steps |
– |
| Output Programmable Phase Step |
1 ns ~ 2 ns (±180° range) |
Per output |
| Reference Monitor |
LOS / Activity / Frequency / GPIO |
– |
| Auto Reference Switching |
Yes (with state machine) |
Revertive / Non-revertive |
| On-Chip Non-Volatile Storage |
Yes |
– |
| Holdover Capability |
Yes |
– |
| Operating Temperature |
-40 ~ +85 |
°C |
| Packaging |
Tape & Reel (TR) |
Factory pack: 1,500 |
Core Features & Advantages
The 8A34001E-000AJG8 is Renesas ClockMatrix family’s flagship 8-channel Synchronization Management Unit — integrating 8 independent DPLL/DCO channels, 12 differential outputs, 8 fractional output dividers, and a comprehensive reference monitoring/switching engine in a single 144-CABGA package, delivering femtosecond-level jitter performance for carrier-grade telecom and IEEE 1588 timing applications.
- Primary Function: IEEE 1588 / SyncE system synchronizer with 8 independent timing channels (each configurable as DPLL or DCO), 12 differential / 24 LVCMOS outputs, 150 fs RMS phase jitter, 7 output signal standards (LVCMOS/LVDS/LVPECL/HCSL/CML/SSTL/HSTL), input-to-output and output-to-output phase alignment with 1 ps resolution, and ITU-T G.8262 / G.8273.2 / G.813 / GR-1244 / GR-253 compliance in a 10 x 10 mm CABGA-144 package.
- Advantages:
- 8 Independent DPLL/DCO Channels — Single-Chip SETS Replacement: Each of the 8 timing channels can independently operate as a frequency synthesizer, jitter attenuator, DCO, or DPLL. This replaces what traditionally required 4–8 separate PLL ICs plus a microcontroller — consolidating an entire SyncE/PTP timing card’s PLL section into one 10 x 10 mm device. The DCO mode accepts frequency control from external IEEE 1588 servo software with resolution better than 1.11 × 10⁻¹⁶, enabling full G.8273.2 boundary clock compliance.
- 150 fs RMS Jitter — Direct SERDES Clocking: The 150 fs RMS phase jitter (10 kHz–20 MHz) is low enough to directly clock 100GBASE-R, 40GBASE-R, and 10GBASE-R Ethernet SERDES without an additional jitter-cleaning PLL stage. This eliminates a dedicated low-jitter clock generator from the BOM, reducing component count, PCB area, and power consumption in high-speed line card designs.
- Any-Input-to-Any-Output Crosspoint with 1 ps Phase Resolution: Any of the 8 differential / 16 single-ended inputs can be mapped to any or all of the 8 timing channels, and any channel can drive any output — a full crosspoint switching fabric. Input phase offset is programmable in 1 ps steps (±1.638 µs range), and output-to-output phase alignment is tunable per-output. This enables precise phase alignment across redundant timing paths, simplifying hitless reference switching and phase/time error budgeting in G.8273.2 telecom boundary clocks.
Typical Application Scenarios
- Industry: Telecommunications / Data Center Networking / 5G Infrastructure / Industrial Timing
- Equipment: PTP grandmaster/boundary clocks, SyncE line cards, 5G MIMO RRUs, FWA CPE, optical transport (OTN) equipment, data center ToR switches
- Use Cases:
- IEEE 1588 Boundary Clock (G.8273.2 Class B/C): The 8A34001E-000AJG8 serves as the single-chip timing engine in a G.8273.2 boundary clock. DPLL channels lock to upstream PTP/SyncE references with programmable bandwidth (12 µHz–22 kHz), while DCO channels synthesize phase/time-aligned outputs driven by the external IEEE 1588 servo. The combination bus shares frequency information across channels, simplifying the G.8273.2 compliance procedure. Hitless reference switching with holdover ensures sub-microsecond phase transients during network reconfiguration.
- 5G MIMO RRU / FWA Timing Card: In 5G massive MIMO remote radio units, the 8A34001E-000AJG8 generates all required reference clocks (CPRI/eCPRI line rate, RF sampling, GPS 1PPS alignment) from a single SyncE/PTP input. The 12 differential outputs provide independent clock domains for the RF transceiver, baseband processor, and fronthaul interface — each with programmable phase offset to compensate for PCB trace length skew and antenna array calibration offsets.
- 100G/40G OTN Line Card Clock Distribution: The 150 fs RMS jitter enables direct clocking of 100GBASE-R and OTU4 SERDES without an intermediate jitter-cleaning PLL. The 8:12 input-to-output crosspoint maps multiple line-side and system-side references to 12 output clock domains, while the reference monitor with LOS detection and automatic switching provides carrier-grade redundancy. The on-chip non-volatile storage retains configuration across power cycles, eliminating external EEPROM and simplifying card boot time.
Market Reference Price
| Market |
Price Range |
Currency |
| DigiKey (Tray) |
$80.94 (1 pcs) / $57.27 (168+ pcs) |
USD |
| DigiKey (Tape & Reel) |
$73.26 (1 pcs) / $50.47 (1,500+ pcs) |
USD |
| Utmel |
$76.15 (1 pcs) / $60.32 (1,000+ pcs) |
USD |
| Global-IC (HK Stock) |
$27.38 (1,500+ pcs) |
USD |
| Huaqiangbei Spot |
¥300 ~ ¥550 |
CNY |
Related Models Comparison
| Model |
Difference |
Application |
| 8A34002E-000NLG |
4-channel version, 72-VFQFPN (7 x 7 mm), lower I/O count |
Space-constrained PTP timing cards, 4-channel boundary clocks |
| 8A34003E-000NBG |
4-channel, 48-VFQFPN, SERDES up to 28 Gbps |
CPRI/eCPRI and high-speed SERDES clocking |
| 8A34001E-001AJG |
Same silicon, different firmware configuration (pre-programmed) |
Application-specific pre-configured variants |
| LMK05318 |
Texas Instruments, 4-output network synchronizer, similar G.8262 compliance |
Lower channel count SyncE/PTP designs |
| Si5380 |
Skyworks (formerly Silicon Labs), 12-output jitter attenuator, no DPLL |
Jitter cleaning without DPLL/DCO/1588 features |
