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Part: PCF87852
Category:
Description: Bluetooth Baseband Controller
Company: Philips Semiconductors
Datasheet: Download PCF87852 datasheet File size : 933 kB
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Datasheet text preview:
PCF87852
Bluetooth baseband controller
Rev. 01 -- 23 April 2004 Preliminary data
1. General description
The PCF87852 combines the BluetoothTM protocol stack, Link Controller (LC), Link Manager (LM), and Host Controller Interface (HCI) firmware of the Bluetooth system specification in a single IC with embedded software. Together with an RF module, a few external components and an antenna it forms a Bluetooth system. In most cases this module will be attached to a host, for example a GSM baseband controller or a PC processor. The PCF87852 may also be used for embedded Bluetooth applications by running the upper software layers also from the on-chip memory. Together with an external voice codec a Bluetooth headset application can be realized. The industry standard ARM7TDMITM microcontroller with low power consumption is integrated together with ROM memory and SRAM. There are no provisions for external controllers to directly access on-chip data memory. Communication with an external host, for example a PC, GSM or PDA, is handled via the HCI. Industr y standard interfaces such as I2C-busTM, PCM and IOM® are supported by on-chip hardware. Additionally, a UART interface is available that can be used as the Bluetooth host controller interface. The Bluetooth controller consists of a number of functional blocks that operate under control of the embedded microcontroller. The microcontroller has access to these blocks via the AMBA System Bus (ASB) and the VLSI Peripheral Bus (VPB). The PCF87852 is designed to be used together with an RF IC as low-cost, low-power, radio-based cable replacement or wireless link. This link will be the basis for PCs, telephones, PDAs and peripherals to communicate together on an ad-hoc basis. It will replace cables and enables a wireless personal network. The PCF87852 is especially suited for applications without the need for analog voice input or output, e.g. cellular telephones or computing platforms.
2. Features
2.1 Baseband hardware
s s s s s s Embedded ARM7TDMI microprocessor 224 kbytes ROM memory 38 kbytes SRAM memory 8 kbytes internal data RAM (IRAM) for Bluetooth controller Watchdog timer Two 32-bit system timers
Philips Semiconductors
PCF87852
Bluetooth baseband controller
s Bluetooth controller including scrambling, CRC generation and checking, FEC encoding and decoding and ciphering according the "Specification of the Bluetooth System, Version 1.1" s Bluetooth connections supporting: x Maximum 3 active connections (ACL) x One voice connection (SCO). s CVSD transcoder s RF interface s RSSI measurement s On-chip 1.8 V voltage regulator s 8-bit D/A and A/D conversion for various purposes; e.g. PA control s Power-on reset s System clock crystal oscillator s Low-power crystal oscillator for a low-frequency clock input s System clock request signal for control of external clock source s Microprocessor interfaces including UART, I2C-bus, combined PCM/IOM and general purpose I/O-pins s Patch mechanism for code updates and corrections.
2.2 Firmware
s s s s s s s Interface drivers Bluetooth controller driver Link Controller (LC) Link Manager (LM) Host Controller Interface (HCI) L2CAP, RFCOMM and SDP Small profiles and application software (i.e Bluetooth headset).
2.3 General
s Core and interface supply: 1.8 V; RF interface supply: 2.7 V to 3.4 V s Operating temperature range: -40 °C to +85 °C s Package: LFBGA73 (7 × 7 mm2 and 0.5 mm pitch).
3. Applications
s Cell phones and smart phones s Computing applications (PC, notebook and PDA) s Cellular accessories (Bluetooth headsets).
9397 750 12161
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Preliminary data
Rev. 01 -- 23 April 2004
2 of 12
Philips Semiconductors
PCF87852
Bluetooth baseband controller
4. Quick reference data
Table 1: Symbol Supplies VSS VDDCO1 VDDCO2 VDDIORF VDDIO18 VDDIOV VDDA VDDO Power IDD(on) ground voltage first core supply voltage second core supply voltage RF interface supply voltage 1.8 V I/O supply voltage variable I/O supply voltage analog supply voltage oscillator supply voltage consumption[6] operating supply current for an active ACL link and continuous DM1 and DH1 mode IDD = IDDC + IDDA; ARM active; VDDC = VDDA = 1.8 V VDDIORF = 3.0 V 13 mA
[1] [2] [2] [2][3][4] [2] [2] [2] [2][5]
Quick reference data Parameter Conditions Min 1.65 1.65 1.65 1.65 1.65 1.65 1.65 Typ 0 1.8 1.8 3.0 1.8 3.0 1.8 1.8 Max 1.95 1.95 3.6 1.95 3.6 1.95 1.95 Unit V V V V V V V V
IDDIORF(tx) RF interface supply current in transmit mode IDD(lp)
-
125 40
-
µA µA
low-power supply current in low IDD = IDDC + IDDA; ARM power mode off; DCXO off; LPO on (32.768 kHz) off mode supply current for lowest possible current IDD = IDDC + IDDA; ARM off; clocks off
[7]
IDD(off)
-
30
-
µA
Digital I/O pins I/O pins at VDDIORF VIH VIL VOH VOL VIH VIL Vhys VOH VOL VIH VIL Vhys VOH VOL
[1] [2]
HIGH-level input voltage LOW-level input voltage HIGH-level output voltage LOW-level output voltage HIGH-level input voltage LOW-level input voltage hysteresis voltage HIGH-level output voltage LOW-level output voltage HIGH-level input voltage LOW-level input voltage hysteresis voltage HIGH-level output voltage LOW-level output voltage IOH = 3 mA IOL = 3 mA IOH = 4 mA IOL = 4 mA IOH = 4 mA IOL = 4 mA
2.0 0 0.7VDDIO18 0 0.7VDDIOV 0 VDDIOV - 0.4 -
-
VDDIORF 0.8 0.4 VDDIO18
V V V V V V V V V V V V V
VDDIORF - 0.4 -
I/O pins at VDDIO18 0.3VDDIO18 V 0.4 VDDIOV 0.3VDDIOV 0.4
0.3VDDIO18 0.3VDDIOV -
VDDIO18 - 0.4 -
I/O pins at VDDIOV
Applies to all 0 V ground reference pins: VSSIORF, VSSCO1, VSSCO2, VSSIO18, VSSIOV, VSSA and VSSO. It must be insured that the supply rise on each of the supply pins from 0 V to 1.1 V is shorter than 5 ms.
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
9397 750 12161
Preliminary data
Rev. 01 -- 23 April 2004
3 of 12
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