BCM20705 datasheet(49/67 Pages) CYPRESS

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Electrical Characteristics

BCM20705 Data Sheet

BROADCOM CONFIDENTIAL

Broadcom®

Bluetooth Transceiver and Baseband Processor

November 13, 2014 • MCS20705-DS104-R

Page 48

Table 15: Current Consumption—Class 1(10 dBm)

Operational Mode

Conditions

Typica

Unit

Receive (1 Mbps)

Current level during receive of a basic rate packet

Transmit (1 Mbps)

Current level during transmit of a basic rate packet, GFSK output

power = 10 dBm

Receive (EDR)

Current level during receive of a 2 or 3 Mbps rate packet

Transmit (EDR)

Current level during transmit of a 2 or 3 Mbps rate packet, GFSK

output power = 10 dBm

DM1/DH1

Average current during basic rate max throughput connection

which includes only this packet type.

DM3/DH3

Average current during basic rate max throughput connection

which includes only this packet type.

DM5/DH5

Average current during max basic rate throughput connection

which includes only this packet type.

HV1

Average current during SCO voice connection consisting of only

this packet type. ACL channel is in 500 ms sniff.

HV2

Average current during SCO voice connection consisting of only

this packet type. ACL channel is in 500 ms sniff.

HV3

Average current during SCO voice connection consisting of only

this packet type. ACL channel is in 500 ms sniff.

HCI only active

Average current when waiting for HCI command UART, USB, or SPI

transports.

4.8

Sleep

UART transport active, external LPO clock available.

μA

Sleep, HV Reg Bypass

UART transport active, external LPO clock available, HV LDO

disabled and in bypass mode.

μA

Inquiry Scan (1.28 sec)

Periodic scan rate is 1.28 sec.

350

μA

Page Scan (R1)

Periodic scan rate is R1 (1.28 sec).

350

μA

Inquiry Scan + Page

Scan (R1)

Both inquiry and page scans are interlaced together at 1.28 sec

periodic scan rate.

630

μA

Sniff master (500 ms)

Attempt and timeout parameters set to 4. Quality connection

which rarely requires more than minimum packet exchange.

175

μA

Sniff slave (500 ms)

Attempt and timeout parameters set to 4. Quality connection

which rarely requires more than minimum packet exchange. Sniff

master follows optimal sniff protocol of BCM20705 master.

160

μA

Sniff (500 ms) + Inquiry/

Page Scan (R1)

Same conditions as Sniff master and Page Scan (R1). Scan maybe

either Inquiry Scan or Page Scan at 1.28 sec periodic scan rate.

455

μA

Sniff (500ms) + Inquiry

Scan + Page Scan (R1)

Same conditions as Sniff master and Inquiry Scan + Page Scan.

760

μA

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