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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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CS4399 Arkusz danych(PDF) 7 Page - Cirrus Logic |
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CS4399 Arkusz danych(HTML) 7 Page - Cirrus Logic |
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7 / 111 page  DS1113F1 7 CS4399 1.3 Pin Descriptions GNDD 35 C3 N/A I Digital and I/O Ground. Ground for the I/O and core logic. GNDA, GNDCP, GNDD must be connected to a common ground area under the chip. —— — GNDA 8 E5 N/A I Analog Ground. Ground reference for the internal analog section. GNDA, GNDCP, GNDD must be connected to a common ground area under the chip. —— — GNDCP 12, 15, 19 F2, F3, G5 N/A I Charge Pump Ground. Ground reference for the charge pump section. GNDA, GNDCP, GNDD must be connected to a common ground area under the chip. —— — VCP_FILT+ VCP_FILT– 21 18 E2 G2 VCP/ VP 1 I/O Inverting Charge Pump Filter Connection. Power supply from the inverting charge pump that provides the positive/negative rail for the analog output. When operating in external VCP_FILT mode, these pins can directly take in supply voltage. —— — –VA 9 E6 VA O VA Negative Charge Pump Output. Negative charge pump output for DAC rail. It is derived from VA. —— — FLYP_VA FLYN_VA 10 11 F6 G6 VA O –VA Charge Pump Cap Positive/Negative Node. Positive/ negative nodes for the DAC negative charge pump’s flying capacitor. —— — FLYP_VCP 24 E1 VCP/ VP 1 O –VCP Charge Pump Cap Positive Node. Positive node for the analog output negative charge pump’s flying capacitor. —— — FLYC_VCP 23 F1 VCP/ VP 1 O –VCP Charge Pump Cap Center Node. Center node for the analog output negative charge pump’s flying capacitor. —— — FLYN_VCP 20 G1 VCP_ FILT± O –VCP Charge Pump Cap Negative Node. Negative node for the analog output negative charge pump’s flying capacitor. —— — TSO 3 B6 N/A I/O Test Output. —— — TSI — D3, F5 Test Input. —— — 1.The power supply is determined by ADPT_PWR setting (see Section 4.3.1). VP is used if ADPT_PWR = 001 (VP_LDO Mode) or when necessary for ADPTPWR = 111 (Adapt-to-Signal Mode). Table 1-1. Pin Descriptions (Cont.) Pin Name QFN Pin # WLCSP Ball Power Supply I/O Pin Description Internal Connection Digital I/O Driver Digital I/O Receiver Ground Charge Pump Test |
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