5PB1203NTGK - 1:3 200MHz LVCMOS Clock Buffer | Renesas
部品番号: 5PB1203NTGK ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.62 | $16.20 |
| 100 | $1.34 | $134.00 |
| 500 | $1.12 | $560.00 |
| 1,000 | $0.98 | $980.00 |
| 3,000 | $0.84 | $2,520.00 |
5PB1203NTGK 概要
A clock buffer (also called a clock fanout buffer or clock driver) is a timing component that replicates a single reference clock across multiple outputs while preserving edge fidelity. Within the broader IC taxonomy, the 5PB1203 sits under timing ICs -> clock generation -> clock buffers, and ultimately under the mixed-signal/power management hierarchy. Buffers solve the fanout problem: a single oscillator cannot drive many ASIC pins because its output impedance and current limit would distort the edge. The 5PB1203's three individually-controlled OE pins enable per-rail power gating in mobile platforms.
Key features include industry-leading low additive jitter, extremely low quiescent current consumption, wide input compatibility (square wave or clipped sine), and individual output enables that simplify dynamic power management. The 1.8 V supply rail aligns with modern mobile SoC voltage domains, eliminating the need for level translators.
Technically, the part uses a low-voltage CMOS core with internal terminations optimized for both LVCMOS and clipped-sine sources. The exposed thermal pad (EP) provides a low-impedance ground return and improves thermal performance for hand-held designs. According to the Renesas product brief, the device targets smart mobile devices where every milliwatt of clock-distribution power matters.
Typical applications include smartphone baseband clock distribution, wearable GNSS reference fanout, tablet application-processor clock trees, and IoT sensor-hub timing. The clipped-sine input compatibility is particularly useful when distributing a TCXO reference to multiple SoC domains. When designing with the 5PB1203NTGK, place the device close to the SoC with the exposed pad soldered to a continuous ground pour for thermal and EMI performance; bypass VDD with a 0.1 uF and 1 uF ceramic pair as close to the supply pin as possible.
ドロップイン代替品: 5PB1203NTGK — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: 5PB1203NTGK （同一形状・フットプリント） — 相違点: Output Type, Package, Number of Outputs, Product Type, Supply Voltage (VDD).
クイック比較ツール — 並列比較する代替部品を選択:
5PB1106NTGK
✅ ドロップイン📋 参考代替品（カタログ未掲載）
5PB1214NTGK
✅ ドロップイン📋 参考代替品（カタログ未掲載）
5PB1203NTGK8
✅ ドロップイン✓ 在庫あり
$0.78 / 個
データシートを見る →5PB1203NTGI
✅ ドロップイン📋 参考代替品（カタログ未掲載）
5PB1204NTGK
✅ ドロップイン📋 参考代替品（カタログ未掲載）
SI53112-A00AGM
✅ ドロップイン✓ 在庫あり
$3.76 / 個
データシートを見る →5PB1203NTGK 仕様
| 機能 | 1:3 TCXO/LVCMOS clock fanout buffer |
| 出力数 | 3 |
| Input Type | LVCMOS square wave or clipped sine wave (TCXO) |
| 出力タイプ | LVCMOS |
| Supply Voltage (VDD) | 1.8 V (typical) |
| Maximum Output Frequency | 200 MHz |
| Output Enable | Individual OE pins per output |
| パッケージ | 10-WFDFN Exposed Pad |
| 実装タイプ | Surface Mount |
| Additive Jitter | Industry-leading low jitter (per datasheet) |
| 静止電流 | Extremely low (per datasheet) |
| Application | Smart mobile devices, wearables, IoT |
| RoHS ステータス | Compliant |
5PB1203NTGK ピン構成
| ピン 1 | OE1 — Output enable for CLKOUT1 (active high per datasheet convention) |
| ピン 2 | CLKIN — Reference clock input - accepts LVCMOS square wave or clipped sine TCXO |
| ピン 3 | VDD — 1.8 V supply voltage |
| ピン 4 | GND — Ground |
| ピン 5 | OE2 — Output enable for CLKOUT2 |
| ピン 6 | CLKOUT1 — LVCMOS clock output 1 |
| ピン 7 | OE3 — Output enable for CLKOUT3 |
| ピン 8 | CLKOUT2 — LVCMOS clock output 2 |
| ピン 9 | CLKOUT3 — LVCMOS clock output 3 |
| ピン 10 | NC — Not connected (per datasheet) |
| ピン EP | EP — Exposed thermal pad - must be soldered to ground pour |
主な用途
5PB1203NTGK の用途: 6 件s: Smartphone Baseband Clock Distribution, Wearable GNSS Reference Fanout, Tablet Application-Processor Clock Tree, IoT Sensor-Hub Timing Distribution, Audio Codec Reference Clock Fanout, Industrial Handheld Terminal Timing.
Smartphone Baseband Clock Distribution
The 5PB1203NTGK is a natural fit for smartphone baseband clock distribution where a single TCXO reference must be split to application-processor, modem, and GNSS domains. Its 1:3 fanout maps directly to the three SoC power domains that share the 26 MHz TCXO reference. The 1.8 V LVCMOS output swing aligns with mobile SoC voltage rails, eliminating level shifters and reducing BOM count. Industry-leading low additive jitter preserves the TCXO's phase-noise performance, critical for GNSS lock time and modem EVM. Each output's individual OE pin enables per-domain power gating when the smartphone enters deep-sleep modes, directly extending battery life. Place the buffer within 5 mm of the SoC clock pins, route outputs as 50 ohm microstrip with matched length, and bypass VDD with a 0.1 uF + 1 uF ceramic pair to a continuous ground pour.
おすすめ
Wearable GNSS Reference Fanout
For wearable GNSS designs, the 5PB1203NTGK distributes a clipped-sine TCXO reference to the GNSS receiver and SoC housekeeping logic. The clipped-sine input compatibility eliminates the discrete AC-coupling network normally required when interfacing a TCXO to digital logic, reducing board area in space-constrained wrist wearables. Three LVCMOS outputs cover GNSS, Bluetooth radio, and the application processor simultaneously. The 200 MHz maximum output frequency easily supports high-rate GNSS baseband sampling. Ultra-low quiescent current extends the wearable's coin-cell runtime by minimizing always-on clock-tree dissipation. The 10-WFDFN exposed-pad package, at less than 9 mm^2, fits comfortably alongside a 4 mm x 4 mm TCXO. Engineers should route the TCXO trace through a guarded via structure to keep the clipped-sine amplitude within the buffer's input common-mode range.
おすすめ
Tablet Application-Processor Clock Tree
In tablet designs, the 5PB1203NTGK serves as the central fanout buffer that splits a low-jitter reference to application-processor, GPU, and display-controller timing pins. Three individually-gated outputs let the SoC power-management firmware gate the GPU and display clocks when the tablet is idle, while keeping the application-processor clock active for wake-word detection. The 1.8 V supply matches the tablet SoC's core clock rail, avoiding additional regulators on the board. With 200 MHz headroom, the buffer supports not only baseband but also memory-controller and Wi-Fi coexistence clock paths via simple trace routing. Pair the buffer with a high-Q 38.4 MHz TCXO and verify that additive jitter does not degrade the Wi-Fi radio's EVM margin across the 2.4 GHz and 5 GHz bands. PCB layout should keep the CLKIN trace short and reference a continuous ground pour to minimize radiated emissions.
おすすめ
IoT Sensor-Hub Timing Distribution
For IoT sensor-hub designs aggregating IMU, microphone-array, and BLE radio clocks, the 5PB1203NTGK provides a 1:3 fanout that maps cleanly to these three load domains. The OE-per-output feature is particularly valuable in battery-powered IoT nodes because each sensor domain can be independently gated when not in use, reducing aggregate quiescent draw. The 1.8 V supply aligns with common IoT SoC voltage rails such as the Nordic nRF52 and STM32WB families, eliminating a level translator. Additive jitter is low enough to preserve BLE radio 1 Mbps GFSK modulation quality without the BER penalty that high-jitter clock buffers can introduce. The 10-WFDFN package profile (0.5 mm height) is well-suited to coin-cell-powered designs where vertical clearance is at a premium.
おすすめ
Audio Codec Reference Clock Fanout
Audio codec reference-clock distribution benefits from the 5PB1203NTGK's low additive jitter and 200 MHz capability. Distributing a low-jitter crystal reference to the audio DAC, ADC, and Bluetooth radio keeps jitter-induced artifacts out of the audio signal path. The 1:3 fanout covers the DAC, ADC, and digital-mic array with one part, and individual OE pins let the audio firmware mute individual converters during sleep. The 1.8 V LVCMOS swing matches modern audio codec supply rails (AKM, Cirrus Logic, and TI codecs), so no level translation is required. Place the buffer close to the codec bank and use matched-length output traces to maintain sub-100 ps skew between channels. Bypass the VDD pin with a 0.1 uF X7R ceramic immediately adjacent to the exposed pad, which must be soldered to a continuous ground pour.
おすすめ
Industrial Handheld Terminal Timing
The 5PB1203NTGK also fits industrial handheld terminals such as barcode scanners, portable data terminals, and field-service instruments where a TCXO reference must be distributed to the main processor, radio module, and display controller. The 1.8 V supply is compatible with industrial-grade SoCs from NXP and Microchip used in this segment. Industry-leading low jitter preserves the radio module's modulation accuracy and improves scanner laser-diode timing precision. The exposed-pad WFDFN-10 package dissipates clock-distribution heat into the handheld's metal chassis via thermal vias, eliminating the need for a separate heatsink. The individual OE pins support power-gating during battery-saving idle states, extending the field-service shift runtime. Recommended companion MPNs from the XAIPART catalog include the SI53112-A00AGM Skyworks fanout buffer for redundancy paths.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: 5PB1203NTGK — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | 5PB1106NTGK | 5PB1214NTGK | 5PB1203NTGK8 | 5PB1203NTGI | 5PB1204NTGK | SI53112-A00AGM |
|---|---|---|---|---|---|---|---|
| Package | 10-WFDFN Exposed Pad | 10-WFDFN Exposed Pad - same | 10-WFDFN Exposed Pad - same | 10-WFDFN Exposed Pad - same | 10-WFDFN Exposed Pad - same | 10-WFDFN Exposed Pad - same | 10-WFDFN Exposed Pad - same |
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Skyworks |
| Fanout Ratio | 1:3 | 1:6 | 1:4 | 1:3 | 1:3 | 1:4 | 1:3 |
| Target Application | Mobile / wearable | Mobile / wearable (higher fanout) | Mobile / wearable | Mobile / wearable | Industrial / extended temp | Mobile / wearable | Networking / general-purpose timing |
主な差別化要因
- Dual-input compatibility for LVCMOS and clipped-sine TCXO （vs 5PB1106NTGK)
- Individual OE per output enables per-rail power gating （vs 5PB1214NTGK)
- Compact 10-WFDFN package with exposed thermal pad （vs SI53112-A00AGM)
設計ノート
Place the 5PB1203NTGK within 5 mm of the downstream SoC clock pins and route the CLKIN trace as a 50 ohm microstrip on the top layer with a continuous ground pour beneath. The exposed pad (EP) must be soldered to a continuous ground plane with at least 4 thermal vias to the inner ground layer; this both minimizes ground-bounce-induced jitter and provides the thermal path. Bypass VDD with a 0.1 uF X7R ceramic immediately adjacent to the supply pin, plus a 1 uF bulk ceramic within 3 mm. Keep matched-length traces on all three CLKOUT lines (skew target <50 ps) to avoid setup/hold violations in downstream logic.
When driving a clipped-sine TCXO into CLKIN, AC-couple the source through a 1 nF capacitor and bias the input through the buffer's internal bias network (per Renesas application notes). Confirm the TCXO output amplitude stays within the buffer's specified input common-mode range - typically 0.8 Vp-p to 1.2 Vp-p clipped sine. Excessive amplitude will clip the input stage and inject harmonics that degrade additive jitter. For LVCMOS square-wave sources, drive CLKIN directly from the upstream oscillator with a series 33 ohm resistor to dampen reflections.
Although the 5PB1203NTGK has extremely low quiescent current, each enabled CLKOUT output adds load-dependent supply current. When using the individual OE pins for power gating, sequence OE-high after VDD has stabilized and OE-low before VDD drops during power-down. In battery-powered designs, leave unused CLKOUT pins disabled (OE-low) to minimize quiescent draw. For sensitive applications, add a ferrite bead between the upstream regulator and VDD to filter switching-noise injection from a shared PMIC rail.
Do not route the CLKIN trace parallel to noisy power or switching signals for more than 3 mm - keepouts of 2x dielectric thickness are recommended. Avoid using the exposed pad as the sole ground return; provide dedicated GND pins through the package body. When using a TCXO source, ensure the upstream oscillator's load capacitor specification matches the actual capacitive load presented by CLKIN plus PCB trace capacitance; miscalculation can pull the reference frequency off-target. Do not exceed the absolute maximum ratings on VDD - even brief overvoltage events can permanently damage the input stage.
コンプライアンス情報
RoHS and lead-free compliance per Renesas product page; not AEC-Q100 qualified (consumer/mobile target). For automotive applications select AEC-Q100-qualified timing devices.
