Measurement-computing BTH-1208LS Instrukcja Użytkownika Pobierz pdf (Strona 25)

BTH-1208LS User's Guide Specifications

Parameter Specification

Input low voltage limit –0.5 V absolute min

0 V recommended min

Memory

Table 15. Memory specifications

Parameter Specification

FIFO 12K (12,288) samples

Non-volatile EEPROM 2,048 bytes (768 bytes calibration, 256 bytes user, 1,024 bytes firmware use)

Microcontroller

Table 16. Microcontroller specifications

Parameter Specification

Type High performance 16-bit RISC microcontroller

Power

Table 17. Power specifications

Parameter Condition Specification

Supply current, USB source

During enumeration

< 100 mA

After USB enumeration or

connected to USB charger /

supply

< 500 mA

Battery power (Note 8)

Two AA cells

Alkaline, NiCd, and NiMH cells supported

Battery charging

NiMH and NiCd charging supported.

Alkaline cells automatically detected and not

charged.

+VO power available

After USB enumeration or

Bluetooth connection

3.3 V nominal

+VO output current

After USB enumeration or

Bluetooth connection

50 mA max

Note 8: When operating from batteries there is a user configurable power-off timer that will turn the device off

when there is no host connection for the specified amount of time. The timer can be disabled or set to

a value from 1 – 255 minutes.

Bluetooth

Table 18. Bluetooth specifications

Parameter Specification

Device type (Note 9) Bluetooth 2.1

Device compatibility Backwards compatible with Bluetooth 2.0, 1.2, and 1.1

Bluetooth profile Serial Port Profile (SPP)

Radio range Class II, 10 m typ

Note 9: The Bluetooth radio is disabled when the device is connected to a USB host.

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