Data Sheet

HSBT3007 module_datasheet
CONFIDENTIAL Version2.0– Jul. 13
th
HANSONG ( NANJING) TECHNOLOGY CO.,LTD
13
3.5 LED Drivers
HSBT3007 includes a 3-pad PWM LED driver for driving RGB LEDs for producing a wide
range of colors. All LEDs are controlled by application.
The terminals are open-drain outputs, so the LED must be connected from a positive supply
rail to the pad in series with a current-limiting resistor.
Figure 7-1 LED equivalent circuit
From Figure 7-1 it is possible to derive Equation 7-1 to calculate ILED. If a known value of
current is required through the LED to give a specific luminous intensity, then the value of
RLED is calculated.
Equation 7-1 LED current
NOTE The supply domain for LED[2:0], VDD_PADS_2, or VDD_PADS_1, must remain
powered for LED functions to operate.
3.6 Audio interfaces
■ Dual I²S outputs
■ I²S input, SPDIF input (uncompressed PCM only)
■ USB audio
■ Stereo audio ADC with line input, stereo audio DAC
■ Supported sample rates of 8, 11.025, 16, 22.05, 32, 44.1, and 48kHz
HANSONG