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CN-224232177-U - Docking station core board circuit

CN224232177UCN 224232177 UCN224232177 UCN 224232177UCN-224232177-U

Abstract

The utility model relates to the technical field of docking stations, in particular to a docking station core board circuit which comprises a PCB circuit board, wherein a main control circuit, a first sub-control circuit, a second sub-control circuit and a USB hub circuit compatible with USB2.0 standard are arranged on the PCB circuit board, and the main control circuit comprises a JHL8440 type control chip supporting a lightning 4 protocol. The control chip supports the Thunderbolt 4 standard, and has the data transmission rate of 40Gbps at maximum, the output capacity of a double 4K display and the high-efficiency power management function. The main control circuit is electrically connected with the first sub-control circuit, the second sub-control circuit and the USB hub circuit respectively. The whole circuit design meets the technical specification of lightning 4, can realize high-speed data transmission, multi-equipment expansion and stable compatibility, and solves the urgent demands of users on high-performance and multifunctional docking stations meeting the lightning 4 standard.

Inventors

  • LUO XIONG

Assignees

  • 深圳市赋研星辰科技有限公司

Dates

Publication Date
20260512
Application Date
20250617

Claims (10)

  1. 1. The docking station core board circuit is characterized by comprising a PCB, wherein a main control circuit, a first sub-control circuit, a second sub-control circuit and a USB hub circuit compatible with the USB2.0 standard are arranged on the PCB, the main control circuit is respectively and electrically connected with the first sub-control circuit, the second sub-control circuit and the USB hub circuit, and the main control circuit comprises a JHL8440 type control chip supporting the lightning 4 protocol.
  2. 2. The docking station core board circuit of claim 1, wherein the a13 pin, the B13 pin, the a11 pin, the B11 pin, the A7 pin, the B7 pin, the A9 pin, the B9 pin, the a21 pin, the B21 pin, the a19 pin, the B19 pin, the a15 pin, the B15 pin, the a17 pin, and the B17 pin of the control chip are each connected in sequence to a resistor and a capacitor; The capacitors are connected to the AC3 pin, the AB3 pin, the AC5 pin, the AB5 pin, the AC9 pin, the AB9 pin, the AC7 pin, the AB7 pin, the AC11 pin, the AB11 pin, the AC13 pin, the AB13 pin, the AC17 pin, the AB17 pin, the AC15 pin, the AB15 pin, the AC19 pin and the AB19 pin of the control chip; The W22 pin, the W23 pin, the Y22 pin and the Y23 pin of the control chip are all connected with resistors; The control chip has A1 pin, an AC2 pin, an AC4 pin, an AC6 pin, an AC8 pin, an AC10 pin, an AC12 pin, an AC14 pin, an AC16 pin, an AC18 pin, an AC20 pin, an AC22 pin, an AB2 pin, an AB4 pin, an AB6 pin, an AB8 pin, an AB10 pin, an AB12 pin, an AB14 pin, an AB16 pin, an AB18 pin, an AB20 pin, an AB22 pin, an AA2 pin, an AA22 pin, an AA23 pin, a Y4 pin, a Y5 pin, a Y6 pin, a Y8 pin, a Y9 pin, a, Y11, Y12, Y13, Y15, Y16, Y18, Y19, Y20, W5, W18, W19, W20, V22, V5, V6, V8, V9, V11, V12, V13, V15, V16, V18, V19, V20, T6, T8, T9, T11, T12, T15, T16, L22, L23, L4, L5, L19, L20, K1, K2, J5, J6, J13, J15, J19, J20, J22, J23, H1, H2, H4, H5, H9, H11, G22, G23, F4, F5, F6, F8, F9, F11, F12, F13, F15, F16, F20, F22, F23, D22, D6, D8, d9, D11, D12, D13, D15, D16, D18, D19, D20, C22, B6, B8, B10, B12, B14, B16, B18, B20, B22, A6, A8, A10, A12, A14, A16, A18, A20, A22, B5, D4, E2, E1, J11, L16, L13, L11, M19, M16, M13, M11, M8, M4, N16, N13, N11, N8, N5, N4, R19, R16, R13, R11, R8, R5, R4, T5, V4, W4, Y2, M5, A23, AC1, AC23, AB23, J4, AB1, and V23 are all grounded.
  3. 3. The docking station core board circuit of claim 1, wherein the first sub-control circuit comprises a first MCU chip of type CYPD and 5235.
  4. 4. The docking station core board circuit of claim 3, wherein the K2 pin, the H2 pin, the K9 pin, and the K10 pin of the first MCU chip are all grounded through a capacitor, and the B9 pin of the first MCU chip is connected to a resistor; The D5 pin, the D6 pin, the D7 pin, the D8 pin, the E4 pin, the E5 pin, the E6 pin, the E7 pin, the E8 pin, the F4 pin, the F5 pin, the F6 pin, the F7 pin, the F8 pin, the G4 pin, the G5 pin, the G6 pin, the G7 pin and the H7 pin of the first MCU chip are all grounded.
  5. 5. The docking station core board circuit of claim 1, wherein the second sub-control circuit comprises a second MCU chip of the CY7C65219 type.
  6. 6. The docking station core board circuit of claim 5, wherein pin 12 of the second MCU chip is connected to a resistor, and pins 33 and 44 of the second MCU chip are both grounded.
  7. 7. The docking station core board circuit of claim 1, wherein the USB hub circuit comprises a hub chip of the FL5801-2Q2 type.
  8. 8. The docking station core board circuit of claim 7, wherein pin 49 of the hub chip is grounded.
  9. 9. The docking station core board circuit of claim 1, wherein the PCB circuit board is provided with two USB-C interfaces supporting the lightning 4 protocol, the USB-C interfaces being electrically connected to the main control circuit, one of the USB-C interfaces being an interface for upstream data transmission, and the other USB-C interface being an interface for downstream data transmission.
  10. 10. The docking station core board circuit of claim 1, wherein the PCB circuit board is provided with at least one gold finger, the gold finger being electrically connected to the master control circuit.

Description

Docking station core board circuit Technical Field The utility model relates to the technical field of docking stations, in particular to a docking station core board circuit. Background Along with the trend of thinning modern electronic equipment, especially notebook computers and tablet computers, the number and types of interfaces of the equipment are greatly reduced, and a plurality of inconveniences are brought to peripheral connection of users. To address this problem, docking stations (Docking Station) have been developed. The docking station is an external expansion device, can provide expansion of various peripheral interfaces for the host, such as a USB interface, video output, a network interface, power supply and the like, and greatly improves the connection capability and the use flexibility of the electronic device. In recent years, with the increasing data transmission speed and the demand for multi-functional integration, it has been difficult for conventional docking stations to meet the demand for high-performance devices. Thunder and lightning 4 (Thunderbolt 4) is used as the latest generation high-speed interface standard, integrates multiple functions such as high-speed data transmission, video output, power supply and the like, is compatible with the USB4 standard, and becomes an ideal choice for the design of the docking station. The lightning 4 standard supports the data transmission rate of 40Gbps at the highest, supports the output of a double 4K display, has remarkable improvement in the aspects of safety and compatibility, and can meet the requirements of future high-performance computing and multimedia application. Therefore, designing a docking station meeting the lightning 4 standard to meet the requirements of increasingly high-speed data transmission, multi-screen display and efficient power supply becomes a technical problem to be solved currently. Disclosure of utility model In view of this, the present utility model proposes a docking station core board circuit conforming to the lightning 4 standard. The utility model provides a docking station core board circuit which comprises a PCB (printed circuit board), wherein a main control circuit, a first sub-control circuit, a second sub-control circuit and a USB hub circuit compatible with the USB2.0 standard are arranged on the PCB, the main control circuit is respectively and electrically connected with the first sub-control circuit, the second sub-control circuit and the USB hub circuit, and the main control circuit comprises a JHL8440 type control chip supporting the lightning 4 protocol. Further, the resistor and the capacitor are sequentially connected to the A13 pin, the B13 pin, the A11 pin, the B11 pin, the A7 pin, the B7 pin, the A9 pin, the B9 pin, the A21 pin, the B21 pin, the A19 pin, the B19 pin, the A15 pin, the B15 pin, the A17 pin and the B17 pin of the control chip; The capacitors are connected to the AC3 pin, the AB3 pin, the AC5 pin, the AB5 pin, the AC9 pin, the AB9 pin, the AC7 pin, the AB7 pin, the AC11 pin, the AB11 pin, the AC13 pin, the AB13 pin, the AC17 pin, the AB17 pin, the AC15 pin, the AB15 pin, the AC19 pin and the AB19 pin of the control chip; The W22 pin, the W23 pin, the Y22 pin and the Y23 pin of the control chip are all connected with resistors; The control chip has A1 pin, an AC2 pin, an AC4 pin, an AC6 pin, an AC8 pin, an AC10 pin, an AC12 pin, an AC14 pin, an AC16 pin, an AC18 pin, an AC20 pin, an AC22 pin, an AB2 pin, an AB4 pin, an AB6 pin, an AB8 pin, an AB10 pin, an AB12 pin, an AB14 pin, an AB16 pin, an AB18 pin, an AB20 pin, an AB22 pin, an AA2 pin, an AA22 pin, an AA23 pin, a Y4 pin, a Y5 pin, a Y6 pin, a Y8 pin, a Y9 pin, a, Y11, Y12, Y13, Y15, Y16, Y18, Y19, Y20, W5, W18, W19, W20, V22, V5, V6, V8, V9, V11, V12, V13, V15, V16, V18, V19, V20, T6, T8, T9, T11, T12, T15, T16, L22, L23, L4, L5, L19, L20, K1, K2, J5, J6, J13, J15, J19, J20, J22, J23, H1, H2, H4, H5, H9, H11, G22, G23, F4, F5, F6, F8, F9, F11, F12, F13, F15, F16, F20, F22, F23, D22, D6, D8, d9, D11, D12, D13, D15, D16, D18, D19, D20, C22, B6, B8, B10, B12, B14, B16, B18, B20, B22, A6, A8, A10, A12, A14, A16, A18, A20, A22, B5, D4, E2, E1, J11, L16, L13, L11, M19, M16, M13, M11, M8, M4, N16, N13, N11, N8, N5, N4, R19, R16, R13, R11, R8, R5, R4, T5, V4, W4, Y2, M5, A23, AC1, AC23, AB23, J4, AB1, and V23 are all grounded. Further, the first sub-control circuit includes a CYPD and 5235 type first MCU chip. Further, the K2 pin, the H2 pin, the K9 pin and the K10 pin of the first MCU chip are grounded through capacitors, and the B9 pin of the first MCU chip is connected with a resistor; The D5 pin, the D6 pin, the D7 pin, the D8 pin, the E4 pin, the E5 pin, the E6 pin, the E7 pin, the E8 pin, the F4 pin, the F5 pin, the F6 pin, the F7 pin, the F8 pin, the G4 pin, the G5 pin, the G6 pin, the G7 pin and the H7 pin of the first MCU chip are all grounded. Further, the second sub-control circuit comprises a CY7C65219 ty