8 Electrical Specifications

This section provides an overview of the IS2083BM device’s electrical characteristics.

Table 8-1. Absolute Maximum Ratings
ParameterMin.Typ.Max.Unit
Ambient temperature under bias (TAMBIENT)-40—+85ºC
Storage temperature (TSTORAGE)-65—+150ºC
Digital core supply voltage (VDD_CORE)0—1.35V
RF supply voltage (VCC_RF)0—1.35 V
SAR ADC supply voltage (SAR_VDD)0—2.1 V
Codec supply voltage (VDDA/VDDAO)0—3.3 V
I/O supply voltage (VDD_IO)0—3.6V
Buck1 and Buck2 supply voltage (BK1_VDD and BK2_VDD)0—4.3V
Supply voltage (LDO31_VIN)0—4.3 V
Battery input voltage (VBAT_IN)0—4.3 V
Adapter input voltage (VADAP_IN)0—7.0 V
Junction operating temperature (TJUNCTION)-40—+125ºC
CAUTION: Stresses listed on the preceding table cause permanent damage to the device. This is a stress rating only. The functional operation of the device at those or any other conditions and those indicated in the operation listings of this specification are not implied. Exposure to maximum rating conditions for extended periods affects device reliability.

The following tables provide the recommended operating conditions and the electrical specifications of the IS2083BM SoC.

Table 8-2. Recommended Operating Condition
ParameterMin.Typ.Max.Unit
Digital core supply voltage (VDD_CORE)1.141.2 1.26 V
RF supply voltage (VCC_RF)1.221.28 1.34 V
SAR ADC supply voltage (SAR_VDD)1.62 1.8 1.98 V
Codec supply voltage (VDDA)1.62 1.8 1.98 V
I/O supply voltage (VDD_IO)3.03.33.6V
Buck1 supply voltage (BK1_VDD)3.03.8 4.25 V
Buck2 supply voltage (BK2_VDD)3.03.8 4.25 V
Supply voltage (LDO31_VIN)3.03.8 4.25 V
Input voltage for battery (VBAT_IN)3.23.84.2V
Input voltage for adapter (VADAP_IN(1))4.555.5V
Operation temperature (TOPERATION)-40+25 +85ºC
  1. ADAP_IN is recommended only for charging the battery in the battery-powered applications.
Table 8-3. Buck1 (RF/Core/ULPC) Switching Regulator(1)
ParameterMin.Typ.Max.Unit
Input voltage 3.03.8 4.25 V
Output voltage (Iload = 70 mA and VIN = 4V) 1.41.5 1.75 V
Output voltage accuracy—±5 —%
Output voltage adjustable step— 50 — mV/Step
Output adjustment range-0.1 — +0.25 V
Average load current (Iload)120 — — mA
Conversion efficiency (VBAT_IN = 3.8V and Iload = 50 mA)—88 (2)—%
Quiescent current (PFM)——40μA
Output current (peak)200——mA
Shutdown current——<1μA
  1. These parameters are characterized but not tested on the production device.
  2. Test condition: Temperature +25ºC and wired inductor 10 μH.
Table 8-4. Buck2 (Audio Codec) Switching Regulator(1)
ParameterMin.Typ.Max.Unit
Input voltage3.03.84.25V
Output voltage (Iload = 70 mA, VIN = 4V)1.71.82.05V
Output voltage accuracy—±5—%
Output voltage adjustable step—50—mV/Step
Output adjustment range-0.1—+0.25V
Average load current (Iload)120——mA
Conversion efficiency

(VBAT_IN = 3.8V, Iload= 50 mA)

—88(2)—%
Quiescent current (PFM)——40µA
Output current (peak)200——mA
Shutdown current——<1µA
  1. These parameters are characterized but not tested on the production device.
  2. Test condition: Temperature +25ºC and wired inductor 10 μH.
Table 8-5. LDO Regulator(1)
ParameterMin.Typ.Max.Unit
Input voltage3.03.84.25V
Output voltageLDO31_VO—3.3—V
Output accuracy (VIN= 3.7V, Iload= 100 mA and +27ºC)—±5—%
Average output current——100mA
Drop-out voltage (Iload = maximum output current)——300mA
Quiescent current (excluding load and Iload < 1 mA)—45—µA
Shutdown current——<1µA
  1. These parameters are characterized but not tested on production device.
  2. Test condition: Temperature +25ºC. The above measurements are done at +25ºC.
Table 8-6. Battery Charger(1)
ParameterMin.Typ.Max.Unit
Adapter input voltage (VADAP_IN)4.6(2)5.05.5V
Supply current (only charger)—34.5mA
Maximum battery fast charge currentHeadroom(3) > 0.7V (VADAP_IN = 5V)—350—mA
Headroom = 0.3V to 0.7V (VADAP_IN = 4.5V)—175(4)—mA
Trickle charge voltage threshold—3—V
Battery charge termination current (% of fast charge current)—10—%
  1. These parameters are characterized but not tested on production device.
  2. It needs more time to get the battery fully charged when ADAP_IN = 4.5V.
  3. Headroom = VADAP_IN – VBAT_IN.
  4. When VADAP_IN – VBAT_IN > 2V, the maximum fast charge current is 175 mA for thermal protection.
Table 8-7. SAR ADC Operating Conditions
ParameterConditionMin.Typ.Max.Unit
Shutdown current (IOFF)PDI_ADC = 1——1μA
Resolution——10—bits
Effective Number of Bits (ENOB)—78—bits
SAR core clock (FCLOCK)——0.51MHz
Conversion time per channel (TCONV)10 FCLOCK cycles1020—μs
Offset error (EOFFSET)—-5—+5%
Gain error (EGAIN)———+1%
ADC SAR core power-up (tPU)PDI_ADC transitions from 1 to 0——500ns
Input voltage range (VIN)Channel 8 (SK2 Pin)0.25—1.4V
Channel 9 (SK1 Pin)0.25—1.4V
Channel 10 (OTP)0.25—1.4V
Channel 11 (ADAP_IN Pin)2.25—12.6V
Channel 12 (BAT_IN Pin)1.0—5.6V
Table 8-8. LED Driver(1)
ParameterMin.Typ.Max.Unit
Open-drain voltage——3.6 V
Programmable current range0—5.25 mA
Intensity control—16— step
Current step—0.35— mA
Power-down open-drain current——1 μA
Shutdown current——1 μA
  1. These parameters are characterized but not tested on production device.
Table 8-9. Audio Codec Digital-to-Analog Converter
ParametersMin.Typ.Max.Unit
DC Specifications
Shutdown mode current——2μA
Over-sampling rate—128—fs
Sample width resolution16—20Bits
Output sample rate8—48kHz
Digital gain-54—4.85dB
Digital gain resolution260dB
Analog gain-28—3dB
Analog gain resolution—1—dB
Turn ON/OFF click and pop levelSingle-ended ——2mV
Capless——1mV
Gain pop—11mV
Allowed loadResistive16——Ω
Capacitive——500pF
AC Specifications(1)
SNR – Capless modeAVDD = 1.8V93——dB
SNR – Cap modeAVDD = 1.8V95——dB
Output voltage full-scale swing495 (1.4)742.5 (2.1)—mV rms (Vpp)
Total harmonic distortionAVDD = 1.8V—-80—dB
Inter-channel isolation–90–80—dB
Dynamic rangeCapless and Single-ended—95—dB
Playback Mode Power
Stereo mode current (16Ω or unload)Capless—2—mA
Single-ended—1.85—
Mono mode current (16Ω or unload)Capless—1.55—mA
Single-ended—1.40—
Maximum output power (AVDD = 1.8V)Capless—14—mW
Single-ended—14—mW
  1. fin = 1 kHz, bandwidth = 20 Hz to 20 kHz, A-weighted, THD+N < 0.01%, 0 dBFS signal, load = 100 kΩ.
Table 8-10. Audio Codec Analog-to-Digital Converter
Parameter (Condition)Min.Typ.Max.Unit
DC Specifications
Shutdown mode—12µA
Sample width resolution——16Bits
Input sample rate8—48kHz
Digital gain-54—4.85dB
Digital gain resolution26—dB
Microphone boost gain—20—dB
Analog gain step—1—dB
Input full-scale at maximum gain (Differential)—4—mV rms
Input full-scale at minimum gain (Differential)—800—mV rms
3 dB bandwidth—20—kHz
Microphone mode input impedance (Resistance)—610kΩ
Microphone mode input impedance (Capacitance)——20pF
AC Specifications(1)
SNR (AVDD = 1.8V)88——dB
Total harmonic distortion (AVDD = 1.8V)—-70—dB
Dynamic range (AVDD = 1.8V)—-88—dB
THD+N (microphone input) at 30 mVrms input—0.02—%
Record Mode Power
Stereo Record mode current—1.75—mA
Mono Record mode current—0.95—mA
  1. fin = 1 kHz, bandwidth = 20 Hz to 20 kHz, A-weighted, THD+N <1%, 150 mVPP input.
Table 8-11. Transmitter Section Class1 (MPA Configuration) for BDR and EDR(1, 2)
Parameter(3, 4)Bluetooth SpecificationMin.Typ.Max.Unit
Transmit power BDR0 to 2010.51111.5dBm
Transmit power EDR 2M0 to 2099.510dBm
Transmit power EDR 3M0 to 2099.510dBm
  1. These parameters are characterized but not tested on production device.
  2. Test condition: VCC_RF = 1.28V, temperature +25ºC.
  3. The RF transmit power is the average power measured for the mid-channel (Channel 39).
  4. The RF transmit power is calibrated during production using the MP tool software and MT8852 Bluetooth test equipment.
Table 8-12. Transmitter Section Class2 (LPA Configuration) for BDR and EDR(1, 2)
Parameter(3, 4)Bluetooth SpecificationMin.Typ.Max.Unit
Transmit power BDR-6 to 4 1.522.5dBm
Transmit power EDR 2M-6 to 400.51dBm
Transmit power EDR 3M-6 to 400.51dBm
  1. These parameters are characterized but not tested on production device.
  2. Test condition: VCC_RF = 1.28V, temperature +25ºC.
  3. The RF transmit power is the average power measured for the mid-channel (Channel 39).
  4. The RF transmit power is calibrated during production using the MP tool software and MT8852 Bluetooth test equipment.
Table 8-13. Receiver Section for BDR, EDR, Bluetooth Low Energy(1, 2)
ParameterPacket TypeBluetooth SpecificationMin.Typ.Max.Unit
Sensitivity at 0.1% BERGFSK≤-70—-88—dBm
Sensitivity at 0.01% BERπ/4 DQPSK≤-70—-90—dBm
8 DPSK≤-70—-84—dBm
Sensitivity at 0.1% BERBluetooth Low Energy≤-70—-92—dBm
  1. These parameters are characterized but not tested on production device.
  2. Test condition: VCC_RF = 1.28V, temperature +25ºC.
Table 8-14. IS2083BM System Current Consumption(1)
ModesConditionRolePacket TypeCurrent (Typ.)Unit
A2DP mode Internal codec, iOS CentralPeripheral2DH5/3DH512.0576mA
Internal codec, Android™ PeripheralCentral3DH512.3218mA
Sniff mode(2) Internal codec, Bluetooth Low Energy disabledPeripheralDM1547.232µA
Central2DH1/3DH1555.7494µA
Internal codec, Bluetooth Low Energy enabledPeripheralDM1832.109µA
Central2DH1/3DH1863.8432µA
SCO/eSCO connectionMute at both far end and near endPeripheral2EV314.1004mA
Central2EV313.9436mA
Inquiry scan Bluetooth Low Energy disabled——1.354mA
Bluetooth Low Energy enabled——1.704mA
Standby mode System offPeripheral—2.8162µA
Central—2.855µA
RF modes(3)Continuous TX modeModulation OFF, PL059mA
Modulation ON, PL030mA
Modulation OFF, PL235.5mA
Modulation ON, PL222mA
Continuous RX modePacket count disable49mA
Packet count enable38.5mA
  1. Measurement conditions are:
    • VBAT_IN = 3.8V; current measured across BAT_IN
    • Standalone BM83 DVT3 module used for measurements; no LEDs, no speaker load
    • iPhone 6 (iOS v12.2) and OnePlus 6 (Android Oxygen version 9.0.3) used for measurements
    • Current measurements average over a period of 120 secs
    • Distance between DUT (BM83) and Bluetooth source (smartphone) is 30 cms
    • All measurements are taken inside a shield room
  2. Internal Codec mode enabled, UART disabled, Auto-Unsniff mode is disabled.
  3. RF TX power is set to 10 dBm.